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A167449 a(0)=1; a(1)=1; for a>1, a(n)=a(n-1)+((n-1)^3)*a(n-2). 0
1, 1, 2, 10, 64, 704, 8704, 160768, 3146240, 85459456, 2379068416, 87838524416, 3254378586112, 155039348776960, 7304909102465024, 432732882146443264, 25086801102965899264, 1797560686374797508608, 125049014505246260592640 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

For n>0, a(n+1)=A166469(A167448(n)).

LINKS

Table of n, a(n) for n=0..18.

CROSSREFS

Other sequences for which a(n)=a(n-1)+((n-1)^k)*a(n-2) are (k=0) A000045, (k=1) A000085, (k=2) A000142.

Sequence in context: A323666 A318814 A130721 * A064170 A151410 A230050

Adjacent sequences:  A167446 A167447 A167448 * A167450 A167451 A167452

KEYWORD

nonn

AUTHOR

Matthew Vandermast, Nov 09 2009

STATUS

approved

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Last modified February 21 20:35 EST 2020. Contains 332111 sequences. (Running on oeis4.)