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Search: id:A067303
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A067303 Even indexed members of A067302. +0
3
1, 18, 1752, 282304, 54547200, 11478167040, 2533556365312, 576271774875648, 133776598692003840, 31513560479297044480, 7505638177922587557888, 1802924878727702252617728, 436026430783762289982963712 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)= A067302(2n) = (n+1)*A067297(2*n).

G.f.: (x*diff(A(x), x)+A(x)) with A(x) g.f. of A067320.

CROSSREFS

Cf. A067322 (odd indexed members of A067302).

Sequence in context: A086366 A086193 A064347 this_sequence A055740 A072477 A019522

Adjacent sequences: A067300 A067301 A067302 this_sequence A067304 A067305 A067306

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Feb 5 2002

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.


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