A151777 First differences of A151776.

1, 12, 12, 84, 12, 84, 180, 420, 12, 84, 180, 564, 540, 420, 1116, 2028, 108, 84, 180, 564, 540, 564, 1500, 3276, 1836, 420, 1116, 2940, 4380, 2724, 6252, 10212, 1284, 372, 420, 612, 540, 564, 1500, 3276

Offset: 1

Author

N. J. A. Sloane, Jun 24 2009

Keywords

• nonn

Links

• David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata, Congressus Numerantium, Vol. 206 (2010), 157-191. [There is a typo in Theorem 6: (13) should read u(n) = 4.3^(wt(n-1)-1) for n >= 2.]
• N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS

Crossrefs

Cf. A151776, A151778.

Extensions

Terms after a(30) from Nathaniel Johnston, Mar 27 2011