A159791 Bisection of toothpick sequence A139250.

0, 3, 11, 23, 43, 55, 79, 123, 171, 183, 207, 251, 303, 347, 423, 571, 683, 695, 719, 763, 815, 859, 935, 1083, 1199, 1243, 1319, 1467, 1607, 1759, 2011, 2475, 2731, 2743, 2767, 2811, 2863, 2907, 2983, 3131, 3247, 3291, 3367, 3515, 3655, 3807, 4059, 4523, 4783, 4827, 4903, 5051, 5191, 5343, 5595, 6059, 6343, 6495, 6747, 7215

Offset

1,2

Links

Robert Price, Table of n, a(n) for n = 1..32768

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.

Sequence in context: A096071 A230117 A342174 * A078723 A294368 A296556

Adjacent sequences: A159788 A159789 A159790 * A159792 A159793 A159794

Keyword

nonn

Author

Omar E. Pol, Apr 28 2009

Extensions

a(28)-a(60) from Robert Price, May 10 2019

Status

approved