A162625 Number of cells turned "ON" at n-th stage of cellular automaton whose virtual skeleton is a polyedge as the toothpick structure of A139250.

3, 4, 6, 6, 8, 12, 14, 10, 8, 12, 16, 20, 28, 36, 34, 18, 8, 12, 16, 20, 28, 36, 36, 28, 28, 40, 52, 68, 92, 104, 82, 34, 8, 12, 16, 20, 28, 36, 36, 28, 28, 40, 52, 68, 92, 104, 84, 44, 28, 40, 52, 68, 92, 108, 100, 84, 96, 132, 172, 228, 288, 288, 194, 66, 8

Offset

1,1

Comments

First differences of A147614.

The main entry for this sequence is A139250, the toothpick sequence. See also A139251.

Links

Jinyuan Wang, Table of n, a(n) for n = 1..1000

David Applegate, The movie version

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, A147614, A160420, A160421, A160422, A160423, A162627.

Sequence in context: A275883 A274529 A284061 * A033095 A158907 A338281

Adjacent sequences: A162622 A162623 A162624 * A162626 A162627 A162628

Keyword

nonn

Author

Omar E. Pol, Aug 05 2009

Extensions

More terms from Nathaniel Johnston, Nov 15 2010

More terms from Jinyuan Wang, Mar 03 2020

Status

approved