A012819 - OEIS

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A012819

sec(sec(x)*sinh(x))=1+1/2!*x^2+21/4!*x^4+837/6!*x^6+60585/8!*x^8...

1, 1, 21, 837, 60585, 7048489, 1201350909, 282008557677, 87244033155153, 34402407033544657, 16843665951415524837, 10025536600336492439061, 7129473645057562412172537, 5969969671887834658217008633 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	CROSSREFS	`Sequence in context: A012645 A028469 A119414 * A202810 A204196 A041843` `Adjacent sequences: A012816 A012817 A012818 * A012820 A012821 A012822`
	KEYWORD	`nonn`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.