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A161207 First differences of A161206. 21
1, 2, 4, 6, 8, 10, 12, 14, 12, 12, 18, 24, 30, 30, 28, 30, 20, 12, 18, 26, 34, 42, 50, 56, 54, 44, 48, 64, 82, 80, 68, 66, 36, 12, 18, 26, 34, 42, 50, 58, 58, 54, 66, 90, 114, 126, 122, 120, 102, 60, 48, 70, 94, 118, 142, 160, 162, 136, 130, 160, 204, 198, 160, 142, 68, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Number of V-toothpicks added to the V-toothpick structure at the n-th round.
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.]
CROSSREFS
Sequence in context: A274611 A319808 A055956 * A280877 A289509 A336735
KEYWORD
nonn
AUTHOR
Omar E. Pol, Jun 08 2009
EXTENSIONS
More terms from R. J. Mathar, Jan 21 2010
STATUS
approved

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Last modified June 17 12:36 EDT 2024. Contains 373445 sequences. (Running on oeis4.)