A012129 - OEIS

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A012129

tanh(arcsin(tanh(x)))=x-3/3!*x^3+41/5!*x^5-1243/7!*x^7+65681/9!*x^9...

1, -3, 41, -1243, 65681, -5335283, 616216121, -95919970123, 19349625251361, -4909180152449763, 1529770153928451401, -574346328696763158203, 255703860384773029976241, -133196988269151890206719443 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A012053 A012162 A012225 * A012035 A012016 A187540` `Adjacent sequences: A012126 A012127 A012128 * A012130 A012131 A012132`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 13 21:09 EST 2012. Contains 205561 sequences.