A009374 - OEIS

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A009374

Expansion of ln(1+tan(x))/exp(x).

0, 1, -3, 10, -40, 205, -1287, 9714, -85384, 859889, -9751651, 123102098, -1711387808, 25985945453, -427828028695, 7591346835562, -144408464041712, 2931676572255297, -63262735545686819, 1445955290624608506 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	MATHEMATICA	`Log[ 1+Tan[ x ] ]/Exp[ x ]`
	CROSSREFS	`Sequence in context: A030868 A030891 A030911 * A137781 A163843 A149056` `Adjacent sequences: A009371 A009372 A009373 * A009375 A009376 A009377`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

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Last modified February 17 02:08 EST 2012. Contains 205978 sequences.