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 A160731 First differences of A160730. 3
 2, 2, 4, 6, 6, 6, 12, 14, 12, 6, 12, 14, 16, 18, 32, 34, 20, 6, 12, 14, 16, 18, 32, 34, 24, 18, 32, 38, 44, 62, 92, 82, 36, 6, 12, 14, 16, 18, 32, 34, 24, 18, 32, 38, 44, 62, 92, 82, 40, 18, 32, 38, 44, 62 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS David Applegate, Omar E. Pol and N. J. A. Sloane, The Toothpick Sequence and Other Sequences from Cellular Automata N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS FORMULA Contribution from Nathaniel Johnston, Mar 28 2011 (Start): a(n) = 2*A168113(n) a(2^(n+2) + 1) = 4(2^n + 1), n >= 1. (End) EXAMPLE Placing the entries starting from a(4) in a triangle with rows that have length equal to powers of two gives: 6, 6 6, 12, 14, 12 6, 12, 14, 16, 18, 32, 34, 20 6, 12, 14, 16, 18, 32, 34, 24, 18, 32, 38, 44, 62, 92, 82, 36 ... The rows of this triangle tend to 2*A168114. CROSSREFS Cf. A139250, A139251, A160730, A160733, A160737, A160739, A160741. Sequence in context: A045999 A075569 A062722 * A302928 A098214 A178883 Adjacent sequences:  A160728 A160729 A160730 * A160732 A160733 A160734 KEYWORD nonn AUTHOR Omar E. Pol, May 25 2009 EXTENSIONS Terms after a(11) from Nathaniel Johnston, Mar 28 2011 STATUS approved

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Last modified October 23 21:16 EDT 2018. Contains 316541 sequences. (Running on oeis4.)