A139559 Primes in A139252 (related to the toothpick structure).

3, 5, 7, 11, 17, 19, 23, 31, 59, 61, 67, 71, 83, 103, 107, 127, 139, 233, 239, 311, 439, 883, 919, 971, 983, 1039, 1087, 1091, 1123, 1399, 1487, 1567, 1747, 1811, 1999, 2131, 2383, 2467, 2927, 3391, 3583, 3659, 3671, 3691

Offset

1,1

Links

Table of n, a(n) for n=1..44.

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, A139252, A139253, A139254.

Sequence in context: A346794 A226653 A128926 * A158361 A342692 A048184

Adjacent sequences: A139556 A139557 A139558 * A139560 A139561 A139562

Keyword

nonn

Author

Omar E. Pol, May 17 2008

Extensions

Terms after a(17) from Nathaniel Johnston, Mar 29 2011

Status

approved