A139559 - OEIS

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A139559

Primes in A139252 (related to the toothpick structure).

1

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

(list; graph; refs; listen; history; text; internal format)

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