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Search: id:A066118
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A066118 (n!*(3*n-1))/2. +0
1
1, 5, 24, 132, 840, 6120, 50400, 463680, 4717440, 52617600, 638668800, 8382528000, 118313395200, 1787154969600, 28768836096000, 491685562368000, 8892185702400000, 169662903201792000, 3406062811447296000, 71770609241210880000, 1583819207322992640000 (list; graph; listen)
OFFSET

1,2

FORMULA

E.g.f.: (1+x/2)/(1-x)^2. - Len Smiley (smiley(AT)math.uaa.alaska.edu), Dec 06 2001

CROSSREFS

Sequence in context: A000349 A036919 A020067 this_sequence A002709 A009411 A080996

Adjacent sequences: A066115 A066116 A066117 this_sequence A066119 A066120 A066121

KEYWORD

nonn

AUTHOR

George E. Antoniou (george.antoniou(AT)montclair.edu), Dec 05 2001

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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