A152291 - OEIS

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A152291

a(n) = (n+1)^[(n-1)/2].

1, 1, 1, 4, 5, 36, 49, 512, 729, 10000, 14641, 248832, 371293, 7529536, 11390625, 268435456, 410338673, 11019960576, 16983563041, 512000000000, 794280046581, 26559922791424, 41426511213649, 1521681143169024, 2384185791015625 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	FORMULA	`Row sums of A152290 at q=-1: a(n) = Sum_{k=0..n(n-1)/2} A152290(n,k)*(-1)^k.`
	PROG	`(PARI) a(n)=(n+1)^floor((n-1)/2)`
	CROSSREFS	`Cf. A152290, A000272.` `Sequence in context: A041907 A151450 A131139 * A041557 A189744 A123304` `Adjacent sequences: A152288 A152289 A152290 * A152292 A152293 A152294`
	KEYWORD	`nonn`
	AUTHOR	`Paul D. Hanna (pauldhanna(AT)juno.com), Dec 02 2008`

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Last modified February 14 23:44 EST 2012. Contains 205689 sequences.