A160427 First differences of A160426.

5, 4, 8, 13, 12, 10, 17, 21, 12, 10, 17, 21, 20, 26, 41, 37, 12, 10, 17, 21, 20, 26, 41, 37, 20, 26, 41, 45, 52, 82, 105, 69, 12, 10, 17, 21, 20, 26, 41, 37, 20, 26, 41, 45, 52, 82, 105, 69, 20, 26, 41, 45, 52, 82, 105

Offset: 1

Author

Omar E. Pol, May 25 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. A139250, A139251.

Extensions

Terms after a(13) from Nathaniel Johnston, Mar 31 2011