A139559 - OEIS

%I #10 Feb 24 2021 02:48:18

%S 3,5,7,11,17,19,23,31,59,61,67,71,83,103,107,127,139,233,239,311,439,

%T 883,919,971,983,1039,1087,1091,1123,1399,1487,1567,1747,1811,1999,

%U 2131,2383,2467,2927,3391,3583,3659,3671,3691

%N Primes in A139252 (related to the toothpick structure).

%H David Applegate, Omar E. Pol and N. J. A. Sloane, <a href="/A000695/a000695_1.pdf">The Toothpick Sequence and Other Sequences from Cellular Automata</a>, 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.]

%H N. J. A. Sloane, <a href="/wiki/Catalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>

%Y Cf. A139250, A139251, A139252, A139253, A139254.

%K nonn

%O 1,1

%A _Omar E. Pol_, May 17 2008

%E Terms after a(17) from _Nathaniel Johnston_, Mar 29 2011