p25 pre-pulsar shuttle

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p25 pre-pulsar shuttle
x = 21, y = 22, rule = B3/S23 18bo$b2o13b3o$o2bo2b2o7bo$b2o2bobo7b2o$3b2o$3bo$2obo9bo$o2bob2o5b2o4b 2o$2b2obo7bo4b2o4$2b2obo7bo$o2bob2o5b2o$2obo9bo$3bo13b2o$3b2o12bobo$b 2o2bobo11bo$o2bo2b2o2b2o7b2o$b2o8bo$5bob4o$5b2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 ZOOM 10 LOOP 25 ]]
Pattern type Oscillator
Number of cells 83
Bounding box 21×22
Period 25
Mod 25
Heat 21.0
Volatility 0.66
Strict volatility 0.66
Discovered by Jason Summers
iNoMed
Year of discovery 2007

p25 pre-pulsar shuttle is a period-25 shuttle oscillator discovered in its original form by Jason Summers on May 14, 2007.[1] The 83-cell variant shown here was found by iNoMed on July 9, 2021.[2] In terms of its minimum population of 83 cells, it is the smallest known period-25 oscillator.

x = 29, y = 29, rule = B3/S23 3b2o6b2o$3bo6bobo9b2o$4bobo15bo$8bobo13bo$5bo2bobo9b5o$5bobobob2ob2o4b o$10bo4bo7b4o$bo2bo6bo11bo2bo$ob2obo5bo2bo$bo2bo$bo2bo15b3o4bo$ob2obo 7b2o5bobo3bobo$bo2bo8b2o5b3o3bobo$27bo2$27bo$bo2bo8b2o5b3o3bobo$ob2obo 7b2o5bobo3bobo$bo2bo15b3o4bo$bo2bo$ob2obo5bo2bo$bo2bo6bo11bo2bo$10bo4b o7b4o$5bobobob2ob2o4bo$5bo2bobo9b5o$8bobo13bo$4bobo15bo$3bo6bobo9b2o$ 3b2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Original form of the oscillator, using p5 sparkers
(click above to open LifeViewer)
RLE: here Plaintext: here

On July 10, 2021, iNoMed found a glider synthesis for an 84-cell version of the oscillator,[3] and another synthesis for the 83-cell version the next day.[4]

References

  1. Jason Summers' jslife pattern collection. Retrieved on July 9, 2021.
  2. iNoMed (July 9, 2021). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. iNoMed (July 10, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums
  4. iNoMed (July 11, 2021). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums

External links