Heptapole

The heptapole (or septapole) is the barberpole of length 7.

Heptapole
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Pattern type Oscillator
Oscillator type Muttering moat
Family Barberpole
Number of cells 13
Bounding box 10×10
Period 2
Mod 1
Heat 14
Volatility 0.70
Strict volatility 0.70
Rotor type Pole 7
Discovered by MIT group
Year of discovery 1970

The first known appearance of the heptapole in a symmetric soup was on January 26, 2015, in a soup found by gameoflifeboy using apgsearch.[1] It first appeared naturally on December 11, 2018, in a haul submitted to Catagolue, making it the longest barberpole and the last 13-bit periodic object to have emerged naturally.[2]

See also

References
  1. gameoflifeboy (January 26, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  2. Billabob (December 11, 2018). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  • 13P2.2 at Heinrich Koenig's Game of Life Object Catalogs
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