1,4
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. A160120, A161419, A161829, A161836.
Sequence in context: A181189 A084681 A096528 * A160086 A115869 A115859
Adjacent sequences: A161834 A161835 A161836 * A161838 A161839 A161840
more,nonn
Omar E. Pol (info(AT)polprimos.com), Jun 21 2009