A009394 - OEIS

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A009394

Expansion of ln(1+tanh(x)*cos(x)).

0, 1, -1, -3, 14, -35, -16, 1057, -10256, 59865, -7936, -5446683, 85543424, -726781835, -22368256, 133713611977, -2849981597696, 32440474082865, -209865342976, -10034804733270963, 271127940241424384, -3854719922524818035 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	MATHEMATICA	`Log[ 1+Tanh[ x ]*Cos[ x ] ]`
	CROSSREFS	`Sequence in context: A064226 A077288 A094627 * A076533 A081379 A081377` `Adjacent sequences: A009391 A009392 A009393 * A009395 A009396 A009397`
	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 04:58 EST 2012. Contains 205985 sequences.