A237120 Number of white areas in the graph of elementary cellular automaton with rule 150 at generation n.

0, 0, 2, 2, 2, 2, 4, 4, 2, 2, 8, 8, 4, 4, 10, 10, 2, 2, 8, 8, 8, 8, 14, 14, 4, 4, 14, 14, 10, 10, 20, 20, 2, 2, 8, 8, 8, 8, 14, 14, 8, 8, 26, 26, 14, 14, 32, 32, 4, 4, 14, 14, 14, 14, 24, 24, 10, 10, 32, 32, 20, 20, 42, 42, 2, 2, 8, 8, 8, 8, 14, 14, 8, 8, 26, 26, 14, 14, 32, 32, 8, 8, 26, 26, 26, 26, 44, 44, 14, 14, 44, 44, 32, 32, 62, 62, 4, 4, 14, 14, 14, 14, 24, 24, 14, 14, 44

Offset

0,3

Comments

a(n) is also the number of white regions on the line at generation n of rule 150.

Links

Philippe Beaudoin, Table of n, a(n) for n = 0..999

Philippe Beaudoin, Python program for rule 30 (can be trivially modified for this sequence).

Eric Weisstein's World of Mathematics, Rule 150.

Crossrefs

Cf. A071036 (rule 150), A237118 (rule 30), A237119 (rule 110).

Sequence in context: A160407 A007457 A119802 * A060369 A179004 A143979

Adjacent sequences: A237117 A237118 A237119 * A237121 A237122 A237123

Keyword

nonn

Author

Philippe Beaudoin, Feb 03 2014

Status

approved