A162799 a(n) = A160161(n+2)/4.

1, 2, 2, 2, 2, 4, 8, 14, 8, 4, 2, 4, 8, 14, 14, 16, 20, 38, 58, 88, 36, 12, 8, 6, 10, 14, 14, 16, 20, 38, 58, 88, 54, 42, 44, 68, 90, 124, 112, 134, 166, 292, 372, 500, 192, 76, 84, 66, 48, 28, 30, 32, 28, 42, 60, 88, 54, 42, 44, 68, 90, 124, 112, 134, 166, 292, 372, 500, 246

Offset

1,2

Links

Table of n, a(n) for n=1..69.

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

Formula

a(n) = A162798(n+1)/2.

Crossrefs

Cf. A139250, A139251, A160160, A160161, A162798.

Sequence in context: A064849 A269302 A132189 * A034585 A171869 A147751

Adjacent sequences: A162796 A162797 A162798 * A162800 A162801 A162802

Keyword

nonn

Author

Omar E. Pol, Jul 28 2009

Status

approved