p40 B-heptomino shuttle
|p40 B-heptomino shuttle|
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|Number of cells||68|
|Discovered by||David Buckingham|
|Year of discovery||Unknown|
P40 B-heptomino shuttle is a period-40 shuttle oscillator found by David Buckingham sometime before May 1991, being the first period 40 oscillator to be discovered.[note 1] It consists of two blockers, two tubs, and a fumarole hassling a B-heptomino.
- A nontrivial period-40 oscillator, such as octagon II on figure eight, could have been constructed from two oscillators of lower period (such as p5 and p8), both of which were known by an earlier date. However, no such LCM oscillators were attested prior to the discovery of this oscillator on or before 1991.
- 68P40.1 at Heinrich Koenig's Game of Life Object Catalogs