A265704 Total number of OFF (white) cells after n iterations of the "Rule 135" elementary cellular automaton starting with a single ON (black) cell.

0, 1, 4, 7, 13, 17, 26, 31, 43, 50, 62, 73, 87, 99, 118, 131, 153, 168, 187, 207, 231, 252, 275, 298, 326, 352, 379, 405, 438, 468, 502, 533, 572, 598, 637, 666, 712, 744, 788, 826, 871, 918, 959, 1004, 1053, 1091, 1146, 1188, 1239, 1283, 1336, 1379, 1438

Offset

0,3

Comments

This is (apart from an index shift) the same as A110267. The reason is that Rule 135 is obtained from Rule 30 by inverting both colors of the 4 cells correlated by the rules. - R. J. Mathar, Dec 16 2015

References

S. Wolfram, A New Kind of Science, Wolfram Media, 2002; p. 55.

Links

Robert Price, Table of n, a(n) for n = 0..999

Eric Weisstein's World of Mathematics, Elementary Cellular Automaton

Index entries for sequences related to cellular automata

Index to Elementary Cellular Automata

Crossrefs

Cf. A110267 (essentially the same sequence), A265695.

Sequence in context: A310820 A310821 A310822 * A110267 A049698 A288823

Adjacent sequences: A265701 A265702 A265703 * A265705 A265706 A265707

Keyword

nonn,easy

Author

Robert Price, Dec 13 2015

Status

approved