A061342 Period of the stationary component of the pattern which a row of n cells becomes in Conway's Game of Life.

1, 1, 2, 1, 2, 1, 1, 1, 2, 15, 2, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 2, 2, 2, 1, 2, 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 2, 2, 1, 2, 2, 1, 2, 2, 2, 2, 2, 1, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2

Offset

1,3

Comments

For n = 56, the pattern produces gliders and thus does not oscillate in the truest sense of the word. For n = 57, no gliders are produced and a(57) = 2. There exists an N such that for all n >= N, the row of n alive cells produces gliders and thus does not oscillate. - Nathaniel Johnston, Jun 08 2009

Links

Eric M. Schmidt, Table of n, a(n) for n = 1..1000

LifeWiki, One-cell-thick pattern

Example

a(10) = 15 because a line of 10 cells becomes the pentadecathlon.
a(56) = 2 because a line of 56 cells becomes 4 gliders (which we ignore) and a remaining pattern of period 2. - Eric M. Schmidt, May 24 2014

Crossrefs

Cf. A152389.

Sequence in context: A176510 A362951 A342464 * A104639 A260704 A161223

Adjacent sequences: A061339 A061340 A061341 * A061343 A061344 A061345

Keyword

nonn

Author

Alex Fink, Jun 06 2001

Extensions

More general definition and sequence extended by Eric M. Schmidt, May 24 2014

Status

approved