

A061342


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


4



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
(list;
graph;
refs;
listen;
history;
text;
internal format)



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 [From Nathaniel Johnston, Jun 08 2009]


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: A205649 A176510 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



