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## Oscillator Discussion Thread

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.

### Re: Oscillator Discoveries Thread

Left, reduced population, right, reduced bounding box:
`x = 38, y = 16, rule = B3S2311b2o19b2o\$11bo3b2o15bo3b2o\$2b2o9bo2bo6b2o9bo2bo\$bo2bo7b3o7bo2bo7b3o\$bobo2b2ob2o11bobo2b2ob2o\$2bob2obobob4o8bob2obobob4o\$obo2bobobo5bo5bobo2bobobo5bo\$2obo3bo2b6o5b2obo3bo2b6o\$3bo3bo16bo3bo\$2obobobob4ob2o8bobobob4ob2o\$o2bobob2o4b2obo6b2obob2o4b2obo\$2b2ob2o3b2o4bo7bob2o3b2o4bo\$8b2obob3o7bo5b2obob3o\$9bobobo10b5obobobo\$7bo4bo13bo6bo\$7b2o!`
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### Re: Oscillator Discoveries Thread

BlinkerSpawn wrote:Left, reduced population, right, reduced bounding box:

Here's a further reduction in both population and bounding box:
`x = 17, y = 14, rule = B3/S235bob2o\$5b2o2bob2o\$3b2o3bo3bo\$2bo3b2ob2o\$bob3obobob4o\$obo2bobobo5bo\$o2bo3bo2b6o\$bobo3bo\$2obobobob4ob2o\$3bobob2o4b2obo\$3bob2o3b2o4bo\$4bo3b2obob3o\$5b3o4b2o\$7bo!`
Dean Hickerson

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### Re: Oscillator Discoveries Thread

Not neccesarily a discovery, but is there such thing as an oblique barberpole?

Something that supports this:

`x = 47, y = 25, rule = B3/S23o\$obo\$2bobo\$4bobo\$6bobo\$8bobo\$10bobo\$12bobo\$14bobo\$16bobo\$18bobo\$20bobo\$22bobo\$24bobo\$26bobo\$28bobo\$30bobo\$32bobo\$34bobo\$36bobo\$38bobo\$40bobo\$42bobo\$44bobo\$46bo!`
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muzik

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### Re: Oscillator Discoveries Thread

muzik wrote:Not neccesarily a discovery, but is there such thing as an oblique barberpole?

Something that supports this:

`x = 47, y = 25, rule = B3/S23o\$obo\$2bobo\$4bobo\$6bobo\$8bobo\$10bobo\$12bobo\$14bobo\$16bobo\$18bobo\$20bobo\$22bobo\$24bobo\$26bobo\$28bobo\$30bobo\$32bobo\$34bobo\$36bobo\$38bobo\$40bobo\$42bobo\$44bobo\$46bo!`

Didn't I refer you to DRH-oscillators.rle before?
`x = 17, y = 23, rule = B3/S2313b3o2\$12bo2b2o2\$10b2obo2bo\$14bo\$9b2o3bo2\$8b2o2\$7b2o2\$6b2o2\$5b2o2\$4b2o\$2bo\$3bobo\$2obob3o\$3bo4bo\$bobob3o\$2b2obo!`
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### Re: Oscillator Discoveries Thread

BlinkerSpawn wrote:Didn't I refer you to DRH-oscillators.rle before?

Probably.

Is there a smaller stabilisation?
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### Re: Oscillator Discoveries Thread

New(?) period 12 oscillator, based on an eater posted by PHPBB12345s

`x = 19, y = 21, rule = B3/S2314bo\$13bobo\$13bobo\$12b2ob3o\$18bo\$12b2ob3o\$12b2obo3\$4b2o3b2o\$4b2o2bo2bob2o\$8bobo2b2o\$9bo2\$3bob2o\$b4o\$o\$b3ob2o\$3bobo\$3bobo\$4bo!`

Think I might have seen this rotor stabilised with caterers/foxes before
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### Re: Oscillator Discoveries Thread

muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before

This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.
mniemiec

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### Re: Oscillator Discoveries Thread

mniemiec wrote:
muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before

This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.

This method has indeed been discovered before; I forget by whom.
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### Re: Oscillator Discoveries Thread

mniemiec wrote:
muzik wrote:New(?) period 12 oscillator, based on an eater posted by PHPBB12345s ... Think I might have seen this rotor stabilised with caterers/foxes before

This is Baker's Dozen. This was traditionally hassled by caterers or jams or other oscillators, but eater2s will likely be cheaper and more compact. I am not sure if this stabilization was known before.

This method has indeed been discovered before; I forget by whom.

http://www.conwaylife.com/forums/viewtopic.php?f=2&t=279&start=925#p17836
Iteration of sigma(n)+tau(n)-n [sigma(n)+tau(n)-n : OEIS A163163] (e.g. 16,20,28,34,24,44,46,30,50,49,11,3,3, ...) :
965808 is period 336 (max = 207085118608).
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### Re: Oscillator Discoveries Thread

Any comments on this osc? I found this in 2009 Nov 2nd...
`x = 11, y = 11, rule = B3/S234b2o\$6bo\$2bobob3o\$5bo3bo\$obo4b2obo\$o2bo2bo2bo\$b2o2bob2o\$2bobobo\$2bobobo\$3bobo\$4bo!`
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### Re: Oscillator Discoveries Thread

Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.
`x = 15, y = 14, rule = B3/S23o13bo\$b2o9b2o\$o4b2ob2o4bo\$2obo7bob2o\$bobo2bobo2bobo\$2bobo5bobo\$2b3o5b3o\$2b3o5b3o\$2bobo5bobo\$bobo2bobo2bobo\$2obo7bob2o\$o4b2ob2o4bo\$b2o9b2o\$o13bo!`
-Josh Ball.

velcrorex

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### Re: Oscillator Discoveries Thread

velcrorex wrote:Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.
`x = 15, y = 14, rule = B3/S23o13bo\$b2o9b2o\$o4b2ob2o4bo\$2obo7bob2o\$bobo2bobo2bobo\$2bobo5bobo\$2b3o5b3o\$2b3o5b3o\$2bobo5bobo\$bobo2bobo2bobo\$2obo7bob2o\$o4b2ob2o4bo\$b2o9b2o\$o13bo!`

Wow that looks very nice, I've never seen it before
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drc

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### Re: Oscillator Discoveries Thread

drc wrote:
velcrorex wrote:Statorless p5. I'm hoping this is new, assuming the wiki page on volatility is up to date.
`x = 15, y = 14, rule = B3/S23o13bo\$b2o9b2o\$o4b2ob2o4bo\$2obo7bob2o\$bobo2bobo2bobo\$2bobo5bobo\$2b3o5b3o\$2b3o5b3o\$2bobo5bobo\$bobo2bobo2bobo\$2obo7bob2o\$o4b2ob2o4bo\$b2o9b2o\$o13bo!`

Wow that looks very nice, I've never seen it before
Wow! Congrats! How did you find this? I am not even sure if one can tweak WLS settings to find this kind of thing!
Best wishes to you, Scorbie

Scorbie

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### Re: Oscillator Discoveries Thread

Scorbie wrote:How did you find this? I am not even sure if one can tweak WLS settings to find this kind of thing!

Nicolay Beluchenko's version of WLS does allow you to search for exactly this kind of thing. There is an option to limit the number of cells in the stator, even down to zero.

EDIT:
-Josh Ball.

velcrorex

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### Re: Oscillator Discoveries Thread

Probably known:
`x = 11, y = 11, rule = B3/S232o\$bo\$bobo3bo\$2b2o2bobo\$5bobo\$5bo\$5bo2bo\$8bo\$7bo\$8b3o\$10bo!`

EDIThttp://www.conwaylife.com/wiki/Confused_eaters
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drc

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### Re: Oscillator Discoveries Thread

This, in all technicality, answers one of my questions:

`x = 25, y = 33, rule = B3/S2310b2o\$11bo\$11bob2o2b2o\$o11bo3bobo\$bo15bo\$14b3o2\$17b2o\$17bo\$18b3o\$20bo5\$10b2o10b2o\$9bo2bo8bo2bo\$o7bobobo6bo2bobo\$bo5b3obo7bo3bo\$2bo4b3o9bo\$22bo\$20b2o4\$12bo\$o9b3o\$bo7bo3b2o\$2bo4bo2bo2bo\$3bo3bo3bobo\$7bo4bo2\$9b3o!`
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muzik

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### Re: Oscillator Discoveries Thread

Feel like this has been discovered already.

`x = 39, y = 17, rule = B3/S2312bo\$11b2o\$10b2o4b2o2b2o\$2o7b3o4b2o2b2o\$2o8b2o4b2o\$11b2o\$12bo2\$18b3o2\$29bo\$28b2o\$27b2o4b2o2b2o\$17b2o7b3o4b2o2b2o\$17b2o8b2o4b2o\$28b2o\$29bo!`

EDIT: well yup, a variant of it.
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muzik

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### Re: Oscillator Discoveries Thread

A p3 I'm 99% sure is known. Popped up on WLS so let's test that assertion.

`x = 10, y = 10, rule = B3/S23b2o4bo\$o2bo2bobo\$obobo2bobo\$b2ob2obobo\$4bo2b2o\$b4obo\$bo2bob3o\$2bobo4bo\$obo2bobobo\$2o2b2ob2o!`
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### Re: Oscillator Discoveries Thread

muzik wrote:A p3 I'm 99% sure is known. Popped up on WLS so let's test that assertion.

This is just stillater with a much larger stator. If you want to know whether an oscillator was previously discovered, you should first check jslife under the 'osc' folder (jslife is available here).
-Matthias Merzenich
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### Re: Oscillator Discoveries Thread

This a new oscillator? Not seeing it anywhere in DRH

`x = 10, y = 10, rule = B3/S232bo3bo\$bobobobo\$o2bobobo\$b2ob2ob2o\$3bo2bo2bo\$b3o4bo\$o3bobobo\$b3o\$3bob2o\$4bo!`
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### Re: Oscillator Discoveries Thread

muzik wrote:This a new oscillator? Not seeing it anywhere in DRH

`x = 10, y = 10, rule = B3/S232bo3bo\$bobobobo\$o2bobobo\$b2ob2ob2o\$3bo2bo2bo\$b3o4bo\$o3bobobo\$b3o\$3bob2o\$4bo!`

Not seeing it in any of the p4 jslife collections or recognizing it from any other ConwayLife posts; neat find!
Smaller version:
`x = 10, y = 10, rule = B3/S237b2o\$4bo2bo\$3bobobo\$2bobo2b2o\$bobo2bo2bo\$2bo4bobo\$4bo\$4obobo\$o2bo\$4b2o!`
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### Re: Oscillator Discoveries Thread

Wiki page then?
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### Re: Oscillator Discoveries Thread

muzik wrote:Wiki page then?

I'd say no -- not quite that neat a find. P4 is a low enough period that if this oscillator counts as wiki-worthy, people could crank up WLS or JLS or whatever and generate hundreds more period-4 objects, and it would be hard to say why they were any less wiki-worthy than this one. The same goes for the piles of unnamed period-4 objects already collected in jslife.

Notice that the Oscillators of period 4 group in the LifeWiki currently has only 35 objects, almost all of which were (a) discovered in the early 1970s, (b) have useful sparks and therefore get included in all kinds of circuitry, or (c) both.

Of course, my flowchart for answering the "Wiki page?" question is pretty simple:

Wiki page? --> No

-- or, more seriously,

Multiple people have been talking about object fairly regularly for multiple years?
Yes --> should have a wiki page
No --> shouldn't have a wiki page yet

Of course you can perfectly well reduce "years" to "months" or "weeks", in special circumstances... but really, in most cases, there's no need to be in a big hurry to decide. If this new P4 turns out to provide a spark for a new smallest color-changing p4 glider reflector, or something along those lines, then it will end up on the wiki with no need to ask the question.

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### Re: Oscillator Discoveries Thread

There aren't many p7s... I'm assuming any new p7 rotors would deserve a page then.

Speaking of p7s, I haven't been having way too much luck searching for the T-nosed p7... anyone else up for the challenge?
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muzik

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### Re: Oscillator Discoveries Thread

muzik wrote:There aren't many p7s... I'm assuming any new p7 rotors would deserve a page then.

I would say "no". First, there are a lot of known p7s (see o0007-bil.lif). Second, even if there weren't, that doesn't automatically mean any new oscillator should get a page. For example, there are only a few p13 oscillators, but most of them are boring billiard tables. In my opinion, the only known p13s that deserve a page are Buckingham's p13 (the first) and Nicolay's p13 (the smallest).

There are currently many patterns that should have pattern pages but don't (for example, the 9 oscillators listed here). Focus on these pages first.

As a last note, here is an important question to ask yourself before adding a new page: "What other pages should link to this page?" (not counting category pages). If there isn't a good reason to link to your new page, then it's probably not notable enough to be included on the wiki.
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