A012139 - OEIS

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A012139

sinh(arcsin(arctanh(x)))=x+4/3!*x^3+84/5!*x^5+4208/7!*x^7+386064/9!*x^9...

1, 4, 84, 4208, 386064, 56523072, 12121690944, 3589856932608, 1406019035808000, 704535958463063040, 439949357001315947520, 335139715537167259791360, 305989012726577998256148480 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	LINKS	`Table of n, a(n) for n=0..12.`
	CROSSREFS	`Sequence in context: A024260 A099706 A012065 * A012037 A012025 A012107` `Adjacent sequences: A012136 A012137 A012138 * A012140 A012141 A012142`
	KEYWORD	`nonn`
	AUTHOR	`Patrick Demichel (patrick.demichel(AT)hp.com)`
	STATUS	`approved`

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Last modified January 30 03:32 EST 2023. Contains 359939 sequences. (Running on oeis4.)