id:A012692 - OEIS Search Results

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sech(tanh(x)*cos(x))=1-1/2!*x^2+25/4!*x^4-1057/6!*x^6+81905/8!*x^8...

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1, -1, 25, -1057, 81905, -10280289, 1887120585, -476966767617, 158890850697185, -67468163508862017, 35571148438980847225, -22799419589275221917281, 17459463801481355245128145 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Sequence in context: A159332 A139163 A167257 this_sequence A066852 A123204 A012508` `Adjacent sequences: A012689 A012690 A012691 this_sequence A012693 A012694 A012695`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research