A013420 - OEIS

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A013420

sec(arcsin(x)-arcsinh(x))=1+40/6!*x^6+108000/10!*x^10+1232000/12!*x^12...

1, 0, 0, 40, 0, 108000, 1232000, 1647734400, 57657600000, 85927162048000, 6053574009600000, 11452742596189440000, 1349295190949488640000, 3261229190521061760000000, 577775664177165642240000000 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	CROSSREFS	`Sequence in context: A013373 A013375 A013419 * A156917 A176644 A078084` `Adjacent sequences: A013417 A013418 A013419 * A013421 A013422 A013423`
	KEYWORD	`nonn`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 15 20:26 EST 2012. Contains 205852 sequences.