A237119 -id:A237119 - cp's OEIS frontend

A237118 Number of white areas in the graph of elementary cellular automaton with rule 30 at generation n.

0, 0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 19, 22, 25, 28, 31, 36, 40, 43, 47, 51, 53, 56, 60, 65, 71, 74, 80, 86, 90, 94, 99, 104, 109, 113

Offset: 0

Philippe Beaudoin, Feb 03 2014

nonn

Philippe Beaudoin, Table of n, a(n) for n = 0..999
Philippe Beaudoin, Python program to generate this sequence.
Eric Weisstein's World of Mathematics, Rule 30.

Cf. A070950 (rule 110), A237119 (analog for rule 110), A237120 (analog for rule 150). A226482(n) - 1 is the number of white areas on the line corresponding to generation n.

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

Original entry on oeis.org

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

Philippe Beaudoin, Feb 03 2014

nonn

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

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.

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

cp's OEIS Frontend

A237118 Number of white areas in the graph of elementary cellular automaton with rule 30 at generation n.

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