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A196665
Expansion of (1-6x)/(1-19x).
1
1, 13, 247, 4693, 89167, 1694173, 32189287, 611596453, 11620332607, 220786319533, 4194940071127, 79703861351413, 1514373365676847, 28773093947860093, 546688785009341767, 10387086915177493573, 197354651388372377887, 3749738376379075179853
OFFSET
0,2
FORMULA
a(0)=1, a(n)=13*19^(n-1) for n>0.
a(n)=Sum_0<=k<=n{A193722(n,k)*6^k}.
CROSSREFS
KEYWORD
nonn
AUTHOR
Philippe Deléham, Oct 05 2011
STATUS
approved