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 A160171 First differences of X-toothpicks numbers A160170. 5
 0, 1, 4, 8, 8, 24, 32, 32, 56, 80, 80, 88, 112, 160, 168, 240, 224, 344, 320, 320, 344, 448, 528, 536, 704, 704, 872, 736, 880, 840, 1024, 1088, 1256, 1328, 1392, 1416, 1440, 1504, 1656 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Number of X-toothpicks added at n-th stage to the three-dimensional X-toothpick structure of A160170. For another version see A170875. 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 CROSSREFS X-toothpick sequence: A160170. Cf. A139250, A139251, A160120, A160121, A160160, A160161, A170875. Sequence in context: A019197 A066106 A030296 * A195752 A095806 A096872 Adjacent sequences: A160168 A160169 A160170 * A160172 A160173 A160174 KEYWORD nonn AUTHOR Omar E. Pol, May 03 2009, Dec 13 2010 EXTENSIONS More terms (a(6)-a(38)) based on Email from R. J. Mathar dated on Jan 10 2010. STATUS approved

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Last modified December 5 15:27 EST 2022. Contains 358588 sequences. (Running on oeis4.)