id:A012609 - OEIS Search Results

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sech(arcsinh(x)*arcsin(x))=1-12/4!*x^4+3472/8!*x^8-20044992/12!*x^12...

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1, -12, 3472, -20044992, -47937777408, -20305698249280512, -2854719816291959009280, -1250271985277826533770444800 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A077299 A077749 A077297 this_sequence A099186 A105067 A096732` `Adjacent sequences: A012606 A012607 A012608 this_sequence A012610 A012611 A012612`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified December 4 14:15 EST 2008. Contains 151279 sequences.