id:A090439 - OEIS Search Results

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Alternating row sums of array A090438 ((4,2)-Stirling2).

+0
3

1, 5, 37, -887, -168919, -21607859, -2799384755, -337767590383, -11912361112367, 21032925955607701, 16703816669710968821, 10654267957172226744985, 6614425802684094455696377, 4120103872599589439389105373 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)= sum(((-1)^k)A090438(n, k), k=2..2n), n>=1. a(0) := 1 may be added`
	CROSSREFS	`Sequence in context: A083846 A003213 A166851 this_sequence A089795 A081971 A086877` `Adjacent sequences: A090436 A090437 A090438 this_sequence A090440 A090441 A090442`
	KEYWORD	`sign,easy`
	AUTHOR	`Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Dec 23 2003`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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