id:A081442 - OEIS Search Results

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Expansion of cosh(x/sqrt(1-x^2)).

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1, 1, 13, 421, 25369, 2449801, 346065061, 67243537453, 17192488230961, 5593309059948049, 2255588021494237501, 1103994926592923677621, 644587811150505183179593, 442516027690815793746696601 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Periodic zeros suppressed.`
	CROSSREFS	`Cf. A081439, A081440.` `Adjacent sequences: A081439 A081440 A081441 this_sequence A081443 A081444 A081445` `Sequence in context: A142484 A098890 A012023 this_sequence A100872 A012045 A012109`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Mar 21 2003`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

AT&T Labs Research