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

Author

Omar E. Pol, Apr 28 2009

Keywords

• nonn

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.

Extensions

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