A161413 First differences of A161412.

1, 1, 1, 2, 4, 3, 3, 4, 6, 4, 5, 5, 10, 9, 5

Offset: 1

Author

Omar E. Pol, Jun 10 2009

Keywords

• more
• nonn

Comments

Number of V-toothpicks added to the structure at the n-th round.

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. A139251, A160121, A160407, A161207, A161329, A161412.