A012824 - OEIS

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A012824

tan(sec(x)*arcsinh(x))=x+4/3!*x^3+80/5!*x^5+3176/7!*x^7+240128/9!*x^9...

1, 4, 80, 3176, 240128, 26523264, 4329123968, 926411177472, 262606340440064, 92031599216406528, 40177149524079247360, 20888461815920151461888, 13005071730835628127846400, 9394925108531366128729587712 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A189791 A057875 A187543 * A012057 A102063 A002436` `Adjacent sequences: A012821 A012822 A012823 * A012825 A012826 A012827`
	KEYWORD	`nonn`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 17 05:54 EST 2012. Contains 205985 sequences.