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A196665
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Expansion of (1-6x)/(1-19x).
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1
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1, 13, 247, 4693, 89167, 1694173, 32189287, 611596453, 11620332607, 220786319533, 4194940071127, 79703861351413, 1514373365676847, 28773093947860093, 546688785009341767, 10387086915177493573, 197354651388372377887, 3749738376379075179853
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OFFSET
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0,2
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LINKS
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Table of n, a(n) for n=0..17.
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FORMULA
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a(0)=1, a(n)=13*19^(n-1) for n>0.
a(n)=Sum_0<=k<=n{A193722(n,k)*6^k}.
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CROSSREFS
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Cf. A002001, A196660, A196661, A196662, A196663, A196664.
Sequence in context: A259420 A203156 A049665 * A027400 A053100 A320308
Adjacent sequences: A196662 A196663 A196664 * A196666 A196667 A196668
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KEYWORD
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nonn
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AUTHOR
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Philippe Deléham, Oct 05 2011
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STATUS
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approved
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