id:A013339 - OEIS Search Results

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sech(exp(x)-sec(x))=1-1/2!*x^2+1/4!*x^4+20/5!*x^5+23/6!*x^6...

+0
1

1, 0, -1, 0, 1, 20, 23, -140, -975, -1656, 74751, 365640, 1284369, -26269412, -120532297, 1518753340, 37230940193, 312855107472, -1646816770497, -37424409392880, -167334452580383, 9798194248744356 (list; graph; listen)

	OFFSET	`0,6`
	CROSSREFS	`Sequence in context: A104057 A153717 A045563 this_sequence A031169 A093716 A117737` `Adjacent sequences: A013336 A013337 A013338 this_sequence A013340 A013341 A013342`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research