1,1
David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata
N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS
Cf. A139253, A161420, A161421.
Sequence in context: A175196 A077858 A126116 * A133846 A175235 A060643
Adjacent sequences: A161420 A161421 A161422 * A161424 A161425 A161426
more,nonn
Omar E. Pol (info(AT)polprimos.com), Jun 10 2009
Error in data corrected by D. S. McNeil, Aug 17 2010