Achim's p8

Achim's p8 is a period-8 oscillator discovered by Achim Flammenkamp on July 20, 1994.[1] In August 2004 Jason Summers and Mark Niemiec found a 13-glider synthesis of this oscillator.[2]

Achim's p8
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Pattern type Oscillator
Number of cells 18
Bounding box 9×9
Frequency class 42.8
Period 8
Mod 4
Heat 14
Volatility 0.90
Strict volatility 0.70
Discovered by Achim Flammenkamp
Year of discovery 1994

Commonness

On Catagolue, it is the fifth most common period 8 oscillator, being slightly less common than smiley but more common than blocker on cis-dock.[3] It first occurred naturally on August 21, 2015, in a soup submitted to Catagolue by Tanner Jacobi.[4]

gollark: The most performant way would probably be an array containing all the nodes, and each thing storing indices to its children and not actual pointers.
gollark: WRONG!
gollark: Although you might need a Box<> to avoid apiology there, hmm.
gollark: SmallVec, quite possibly.
gollark: A vector for every node is *probably* suboptimal?

See also

References
  1. Dean Hickerson's oscillator stamp collection.
  2. Jason Summers' jslife pattern collection.
  3. Adam P. Goucher. "Statistics". Catagolue. Retrieved on October 27, 2018.
  4. gameoflifeboy (August 21, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  • 18P8.1 at Heinrich Koenig's Game of Life Object Catalogs
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