Big S

Big S (or large S[1] or S-spiral[2] or simply S[3]) is a simple 14-cell still life discovered by the MIT group in 1971.[4] It is produced by colliding a pi-heptomino with a boat.

Big S
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Pattern type Strict still life
Number of cells 14
Bounding box 7×6
Frequency class 13.9
Discovered by MIT group
Year of discovery 1971
For other uses of 'S', see S (disambiguation).

Commonness

Big S is the twenty-second most common still life in Achim Flammenkamp's census, being less common than snake but more common than bi-pond.[5] It is also the twenty-nineth most common object on Adam P. Goucher's Catagolue.[6]

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See also

References
  1. "Large S". The Life Lexicon. Stephen Silver. Retrieved on May 2, 2009.
  2. "S-spiral". The Life Lexicon. Stephen Silver. Retrieved on May 22, 2009.
  3. "S". The Life Lexicon. Stephen Silver. Retrieved on May 2, 2009.
  4. Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
  5. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on March 30, 2010.
  6. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
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