id:A009024 - OEIS Search Results

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Expansion of cos(ln(1+x)).x.

+0
2

0, 1, 0, -3, 12, -50, 240, -1330, 8400, -59580, 468000, -4018300, 37237200, -367507400, 3802780800, -40373385000, 423927504000, -4048235126000, 25093796832000, 288695417426000, -18721925937000000, 623644389813900000 (list; graph; listen)

	OFFSET	`0,4`
	FORMULA	`n * A003703(n-1).`
	MATHEMATICA	`Cos[ Log[ 1+x ] ]*x`
	CROSSREFS	`Adjacent sequences: A009021 A009022 A009023 this_sequence A009025 A009026 A009027` `Sequence in context: A074547 A105479 A094601 this_sequence A043291 A135343 A083314`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified October 10 20:39 EDT 2008. Contains 144831 sequences.

AT&T Labs Research