login
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.
2
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
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.]
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