A162798 a(n) = A160161(n+1)/2.

1, 2, 4, 4, 4, 4, 8, 16, 28, 16, 8, 4, 8, 16, 28, 28, 32, 40, 76, 116, 176, 72, 24, 16, 12, 20, 28, 28, 32, 40, 76, 116, 176, 108, 84, 88, 136, 180, 248, 224, 268, 332, 584, 744, 1000, 384, 152, 168, 132, 96, 56, 60, 64, 56, 84, 120, 176, 108, 84, 88, 136, 180, 248, 224

Offset

1,2

Links

Table of n, a(n) for n=1..64.

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, A160160, A160161, A162799.

Sequence in context: A194441 A220521 A236680 * A088650 A097154 A108421

Adjacent sequences: A162795 A162796 A162797 * A162799 A162800 A162801

Keyword

nonn

Author

Omar E. Pol, Jul 28 2009

Status

approved