A163312 Row sums of triangle A163311.

1, 3, 8, 17, 34, 64, 114, 195, 325, 529, 840, 1303, 1977, 2940

Offset: 1

Author

Gary W. Adamson, Jul 24 2009

Keywords

• nonn

Comments

Triangle A163311 by diagonals = the infinite set of Toothpick sequences.

Examples

			a(4) = 17 = (1, + 4 + 7, + 5).
		

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

A163311

Formula

a(n) = sum of n-th row terms, triangle A163311