A013065 - OEIS

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A013065

cosh(sinh(x)+arctan(x))=1+4/2!*x^2+8/4!*x^4+214/6!*x^6-2120/8!*x^8...

1, 4, 8, 214, -2120, 244474, -19663636, 2667954774, -459657139376, 101692759589938, -27454474974890796, 8721787160293603566, -3104642361378992916296, 1136421744211874484529546 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A188268 A133262 A120822 * A013096 A200729 A116092` `Adjacent sequences: A013062 A013063 A013064 * A013066 A013067 A013068`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 16 20:42 EST 2012. Contains 205962 sequences.