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A025987
Expansion of 1/((1-2x)(1-5x)(1-6x)(1-8x)).
0
1, 21, 285, 3185, 31941, 299481, 2685565, 23352945, 198684981, 1663903241, 13774041645, 113050606305, 921961387621, 7483064823801, 60518933442525, 488128819261265, 3929148977523861, 31579173926461161
OFFSET
0,2
FORMULA
a(n) = (2*8^(n+3)-9*6^(n+3)+8*5^(n+3)-2^(n+3))/72. [Yahia Kahloune, May 25 2013]
CROSSREFS
Sequence in context: A323063 A028033 A176711 * A125456 A296333 A028028
KEYWORD
nonn,easy
AUTHOR
STATUS
approved