A081439 - OEIS

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A081439

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

1, 2, 5, 14, 53, 242, 1505, 10334, 89129, 797090, 8618045, 94186094, 1220350301, 15745031954, 237660317081, 3534411032894, 60889488170321, 1025300949710402, 19847126167227509, 373194859437512654, 8017708459752349061 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	COMMENTS	`Second binomial transform of expansion of cosh(x/sqrt(1-x^2)).`
	LINKS	`Table of n, a(n) for n=0..20.`
	CROSSREFS	`Cf. A081440.` `Sequence in context: A049338 A115275 A000679 * A052649 A122594 A047136` `Adjacent sequences: A081436 A081437 A081438 * A081440 A081441 A081442`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry, Mar 21 2003`
	STATUS	`approved`

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Last modified May 18 07:10 EDT 2013. Contains 225419 sequences.