id:A009128 - OEIS Search Results

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

+0
1

1, 0, 0, -3, 7, -30, 194, -1365, 10893, -98028, 980324, -10783575, 129402835, -1682236842, 23551315878, -353269738185, 5652315810841, -96089368784280, 1729608638117192, -32862564124226667, 657251282484533151 (list; graph; listen)

	OFFSET	`0,4`
	MATHEMATICA	`Cosh[ Log[ 1+x ] ]*Cos[ x ]`
	CROSSREFS	`Sequence in context: A132105 A019021 A110505 this_sequence A053648 A138862 A080173` `Adjacent sequences: A009125 A009126 A009127 this_sequence A009129 A009130 A009131`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research