id:A012838 - OEIS Search Results

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sec(sec(x)*tanh(x))=1+1/2!*x^2+9/4!*x^4+297/6!*x^6+14385/8!*x^8...

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1, 1, 9, 297, 14385, 1207729, 143876601, 23841581337, 5193194291937, 1442318342390497, 497436148816555113, 208516037618871269001, 104439610892072605613073, 61591265237655555392072593 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Adjacent sequences: A012835 A012836 A012837 this_sequence A012839 A012840 A012841` `Sequence in context: A027834 A129934 A003303 this_sequence A061685 A104775 A106663`
	KEYWORD	`nonn`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified May 13 01:46 EDT 2008. Contains 139661 sequences.

AT&T Labs Research