A024333 - OEIS

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A024333

Expansion of tanh(ln(1+x)^2)/2.

0, 0, 1, -3, 11, -50, 154, 756, -25572, 434736, -6324264, 84312360, -1014504360, 9750096720, -26179417200, -2263442045760, 92224441646400, -2623899775526400, 64132749053646720, -1393649719639125120, 25953090802663939200 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,4`
	LINKS	`Table of n, a(n) for n=0..20.`
	MATHEMATICA	`Tanh[ Log[ 1+x ]^2 ]/2`
	CROSSREFS	`A009789.` `Sequence in context: A193319 A058733 A203163 * A024334 A162477 A115081` `Adjacent sequences: A024330 A024331 A024332 * A024334 A024335 A024336`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin`
	EXTENSIONS	`Extended with signs 03/97.`
	STATUS	`approved`

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Last modified June 19 06:19 EDT 2013. Contains 226399 sequences.