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A021204 Expansion of 1/((1-x)(1-2x)(1-6x)(1-11x)). 0
1, 20, 281, 3472, 40509, 459564, 5139121, 57034088, 630398021, 6952517572, 76586531385, 843104877888, 9278071860877, 102082299710684, 1123046352296513, 12354356208201112, 135902996287980117 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

MATHEMATICA

CoefficientList[Series[1/((1-x)(1-2x)(1-6x)(1-11x)), {x, 0, 30}], x]  (* From Harvey P. Dale, Mar 12 2011 *)

CROSSREFS

Sequence in context: A012836 A028294 A019040 * A017953 A016317 A021404

Adjacent sequences:  A021201 A021202 A021203 * A021205 A021206 A021207

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.