login
A021704
Expansion of 1/((1-x)(1-3x)(1-9x)(1-12x)).
1
1, 25, 430, 6370, 87451, 1148875, 14682760, 184262740, 2283789301, 28059228925, 342594651490, 4164091223110, 50445694121551, 609637726848175, 7354257305858620, 88598528944951480, 1066309318875820201
OFFSET
0,2
LINKS
MATHEMATICA
CoefficientList[Series[1/((1-x)(1-3x)(1-9x)(1-12x)), {x, 0, 25}], x] (* Harvey P. Dale, Feb 24 2011 *)
CROSSREFS
Sequence in context: A056090 A020448 A203544 * A019742 A019722 A180800
KEYWORD
nonn,easy
AUTHOR
STATUS
approved