101

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101
x = 18, y = 12, rule = B3/S23 4b2o6b2o$3bobo6bobo$3bo10bo$2obo10bob2o$2obobo2b2o2bobob2o$3bobobo2bob obo$3bobobo2bobobo$2obobo2b2o2bobob2o$2obo10bob2o$3bo10bo$3bobo6bobo$ 4b2o6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 2.5 THUMBSIZE 2 ]]
Pattern type Oscillator
Number of cells 64
Bounding box 18 × 12
Period 5
Mod 5
Heat 17.6
Volatility 0.46
Strict volatility 0.46
Discovered by Achim Flammenkamp
Year of discovery 1994

101 is a period-5 oscillator that was found by Achim Flammenkamp on August 19, 1994.[1] The name was suggested by Bill Gosper, noting that one of its phases displays the period in binary.

A 64-glider synthesis of this oscillator was found by Entity Valkyrie on January 10, 2020,[2] which was reduced to 51 gliders by Jeremy Tan soon after.[3]

While its sparks are de facto inaccessible, there are contrived configurations of cells that make the domino not completely inaccessible, but it relies on an eater 1 catalysis.

x = 47, y = 18, rule = B3/S23 4b2o6b2o$3bobo6bobo$3bo10bo$2obo10bob2o$2obo2bob2obo2bob2o$3bobobo2bob obo$3bobobo2bobobo$2obo2bob2obo2bob2o$2obo10bob2o$3bo10bo$3bobo6bobo$ 4b2o6b2o2$8b3o27b3o$10b5o25b5o$8bo3bo2bo22bo3bo2bo$6b3o7bo19b3o7bo$5bo 29bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 2 ]]
Contrived proof that the domino spark isn't completely inaccessible[4]
(click above to open LifeViewer)

References

  1. Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. Entity Valkyrie (January 10, 2020). Re: Soup-based syntheses (discussion thread) at the ConwayLife.com forums
  3. Jeremy Tan (January 10, 2020). Re: Soup-based syntheses (discussion thread) at the ConwayLife.com forums
  4. Re: Thread for basic questions (discussion thread) at the ConwayLife.com forums

External links