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A028225
Expansion of 1/((1-7x)(1-9x)(1-10x)(1-11x)).
0
1, 37, 860, 16070, 263991, 3983007, 56583850, 768771040, 10093501781, 129000877577, 1613435099640, 19826334683610, 240097655804371, 2872253241385747, 34007147715912230, 399112139110865780
OFFSET
0,2
FORMULA
a(n)=(3*11^(n+3)-8*10^(n+3)+6*9^(n+3)-7^(n+3))/24. [Yahia Kahloune, Jun 05 2013]
CROSSREFS
Sequence in context: A333065 A251105 A144511 * A028223 A028217 A028215
KEYWORD
nonn
AUTHOR
STATUS
approved