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%I #19 Jan 24 2023 06:39:30
%S 3,5,7,11,19,31,59,79,127,163
%N Primes in A161420.
%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. A139253, A161420, A161421.
%K more,nonn
%O 1,1
%A _Omar E. Pol_, Jun 10 2009
%E Error in data corrected by _D. S. McNeil_, Aug 17 2010
%E a(10) from _Michael S. Branicky_, Jan 23 2023