A161423 Primes in A161420.
3, 5, 7, 11, 19, 31, 59, 79, 127, 163
Offset: 1
Links
- 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
Extensions
Error in data corrected by D. S. McNeil, Aug 17 2010
a(10) from Michael S. Branicky, Jan 23 2023