A089459 - OEIS

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A089459

Shifts 2 places left under the hyperbinomial transform.

1, 1, 1, 2, 6, 30, 221, 2201, 27769, 424757, 7639190, 157969167, 3692733181, 96293669499, 2771232779481, 87247362424120, 2982901522141490, 110057420712635526, 4358745145279372293, 184433423940319376323 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	FORMULA	`a(n+2) = sum(k=0, n, (n-k+1)^(n-k-1)binomial(n, k)a(k)), for n>=0, with a(0)=1, a(1)=1.`
	CROSSREFS	`Cf. A088956, A001858.` `Sequence in context: A108204 A088160 A112317 * A027882 A106209 A003266` `Adjacent sequences: A089456 A089457 A089458 * A089460 A089461 A089462`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Nov 04 2003`

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Last modified February 15 14:57 EST 2012. Contains 205823 sequences.