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 A067419 Fourth column of triangle A067417. 7
 1, 6, 72, 864, 10368, 124416, 1492992, 17915904, 214990848, 2579890176, 30958682112, 371504185344, 4458050224128, 53496602689536, 641959232274432, 7703510787293184, 92442129447518208, 1109305553370218496 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..900 FORMULA a(n) = A067417(n+3, 3). a(n) = 6*(3*4)^(n-1), n >= 1, a(0)=1. G.f.: (1-6*x)/(1-12*x). a(n) = Sum_{k=0..n} A134309(n,k)*6^k = Sum_{k=0..n} A055372(n,k)*5^k. - Philippe Deléham, Feb 04 2012 PROG (MAGMA) [Ceiling(6*(3*4)^(n-1)): n in [0..20]]; // Vincenzo Librandi, Oct 02 2011 CROSSREFS Cf. A067403 (third column), A067420 (fifth column), A001021 (powers of 12). Sequence in context: A105928 A186665 A007031 * A113331 A214159 A303342 Adjacent sequences:  A067416 A067417 A067418 * A067420 A067421 A067422 KEYWORD nonn,easy AUTHOR Wolfdieter Lang, Jan 25 2002 STATUS approved

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Last modified October 20 02:18 EDT 2019. Contains 328244 sequences. (Running on oeis4.)