A056605 Number of stable n-celled patterns ("still lifes") in Conway's game of Life (incorrect version).

0, 0, 0, 2, 1, 5, 4, 9, 10, 25, 46, 121, 240, 619, 1353, 3286, 7773, 19046, 45766

Offset

1,4

Comments

a(18) and a(19) are incorrect. See A019473 for the correct version of this sequence. - Nathaniel Johnston, Aug 19 2018

Links

Table of n, a(n) for n=1..19.

Mark D. Niemiec, Life Object Counts

H. Koenig, Stable Objects

Example

a(4)=2 because the block and the tub are the only 4-cell still lifes.

Crossrefs

Cf. A019473.

Sequence in context: A207480 A166517 A019473 * A091802 A144240 A233525

Adjacent sequences: A056602 A056603 A056604 * A056606 A056607 A056608

Keyword

dead

Author

N. J. A. Sloane, Aug 28 2000

Status

approved