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A017954 Expansion of 1/((1-3x)(1-6x)(1-12x)). 0
1, 21, 315, 4185, 52731, 648081, 7869555, 94992345, 1143260811, 13739265441, 164992058595, 1980630120105, 23771914474491, 285289093487601, 3423625845396435, 41084450500377465, 493019048181297771 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A019041 A021214 A016318 * A055434 A016315 A127424

Adjacent sequences:  A017951 A017952 A017953 * A017955 A017956 A017957

KEYWORD

nonn

AUTHOR

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

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Last modified February 13 17:27 EST 2012. Contains 205523 sequences.