Trans-hook and R-bee

Trans-hook and R-bee (or down bun on bookend) is a still life composed of a bookend (also known as a hook) and a bun (also known as an R-bee). On April 17, 2007, Dean Hickerson found a 4-glider synthesis of this still life.[1]

Trans-hook and R-bee
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Pattern type Strict still life
Number of cells 14
Bounding box 5×7
Frequency class 19.9
Discovered by Unknown
Year of discovery Unknown

Commonness

Trans-hook and R-bee is the fifty-fifth most common still life in Achim Flammenkamp's census, being less common than broken snake but more common than block and two tails.[2] It is also the sixty-seventh most common object on Adam P. Goucher's Catagolue.[3]

gollark: Oops, wrong URL.
gollark: https://osmarks.to/l2cu
gollark: I've written a blog post on it.
gollark: Mostly programming instruction in schools is awful.
gollark: It makes me hate chemistry, because really who wants to go around calculating empirical formulae all day when it's really easy to automate?

See also

References
  1. Dean Hickerson's 2, 3, and 4-glider syntheses pattern collection
  2. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  3. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
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