A086973 Period of oscillator reached starting with a segment of n consecutive live cells and applying the LongLife 2D rule (see comment).

0, 0, 0, 0, 0, 0, 2, 2, 2, 4, 2, 2, 6, 6, 8, 8, 14, 14, 2, 2, 28, 28, 6, 6, 62, 62, 16, 16, 126, 126, 28, 28, 112, 60, 6, 6, 10, 30, 2, 56, 2640, 2, 4, 6, 2, 4, 4, 4, 2, 6, 2, 2, 2, 2, 6, 14, 6, 6, 2, 6, 102, 6, 2, 4, 18, 42, 2, 2, 102, 12, 42, 2, 18, 12, 6

Offset

1,7

Comments

LongLife rule : birth occurs if dead cell has 3,4 or 5 neighbors. Survival occurs if live cell has 5 neighbors. (Sequence computed using LifeLab for mac).

Links

Table of n, a(n) for n=1..75.

Rémy Sigrist, PARI program

Eric Weisstein's World of Mathematics, Game of Life.

Prog

(PARI) See Links section.

Crossrefs

Cf. A086993 (pre-periodic steps).

Sequence in context: A134058 A345530 A216955 * A240131 A029640 A029658

Adjacent sequences: A086970 A086971 A086972 * A086974 A086975 A086976

Keyword

nonn

Author

Benoit Cloitre, Sep 22 2003

Extensions

More terms from Rémy Sigrist, Sep 07 2022

Status

approved