A013067 - OEIS

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A013067

sech(sinh(x)+arctan(x))=1-4/2!*x^2+88/4!*x^4-5014/6!*x^6...

1, -4, 88, -5014, 538376, -93064954, 23605179172, -8256285769398, 3808207305952112, -2239609649656903474, 1635640402649689743132, -1452319030188781207688526, 1540754005662731974429453160 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A012830 A012946 A013101 * A012996 A195373 A065754` `Adjacent sequences: A013064 A013065 A013066 * A013068 A013069 A013070`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 14 10:43 EST 2012. Contains 205614 sequences.