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A025943
Expansion of 1/((1-2x)(1-3x)(1-7x)(1-8x)).
0
1, 20, 263, 2890, 28833, 271320, 2457211, 21670550, 187473605, 1598611300, 13480822719, 112690635330, 935435043817, 7720854845360, 63428474542787, 519059289782830, 4233894901355469, 34441103679651900
OFFSET
0,2
FORMULA
a(n) = -2^(n+2)/15 +4*8^(n+2)/15 +3^(n+3)/20 -7^(n+3)/20. - R. J. Mathar, Jun 04 2013
CROSSREFS
Sequence in context: A356837 A041764 A022111 * A025961 A208948 A278408
KEYWORD
nonn
AUTHOR
STATUS
approved