B-heptomino

plural B-heptominoes

1. cellular automataA particular seven-cell methuselah in Conway's Game of Life.

   Perturbations of its reaction also reproduce it in different generations. This might be tamed someday to form glider guns or puffers, as the B-heptomino in Life has been.

   1994 May 7, David Bell, “HighLife - An Interesting Variant of Life (part 3/3)”, in comp.theory.cell-automata (Usenet)

   2 more examples

   Actually, the period 30 "queen bee" shuttle seems irreparable, as it contains several instances of the Ship neighborhood duriod its cycle. It's the period 46 b-heptomino shuttle that can be stabilized with clocks.

   1994 May 11, Paul Callahan, “HighLife - An Interesting Variant of Life (part 3/3)”, in comp.theory.cell-automata (Usenet)

   In B37/S23, it goes symmetrical after 10 ticks, and produces a familiar pair of B-heptominoes after 23 ticks (the next generation after this can be found in the rotor of a standard B3/S23 p46 oscillator):

   2008 June 25, Dave Greene, “Life: B37/S23 - A Chaotic Universe.”, in comp.theory.cell-automata (Usenet)