A012242 - OEIS

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A012242

log(cos(tanh(x)))=-1/2!*x^2+6/4!*x^4-72/6!*x^6+1456/8!*x^8...

-1, 6, -72, 1456, -47104, 2390784, -180612096, 18625189888, -2431403622400, 384624656646144, -72343735465672704, 16067422146130345984, -4193787904779561730048, 1276366494840535652499456 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A052730 A010796 A038095 * A138446 A099029 A120331` `Adjacent sequences: A012239 A012240 A012241 * A012243 A012244 A012245`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 17 11:46 EST 2012. Contains 206011 sequences.