A002305 - OEIS

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A002305

Denominators of coefficients in asymptotic expansion of (2/pi)*Integral_{0..inf} (sin x / x)^n dx.
(Formerly M5106 N2211)

1, 20, 1120, 3200, 3942400, 66560000, 10035200000 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	REFERENCES	`R. G. Medhurst and J. H. Roberts, Evaluation of the integral I_n(b) = (2/pi)*Integral_{0..inf} (sin x / x)^n cos (bx) dx, Math. Comp., 19 (1965), 113-117.` `N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).` `N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).`
	LINKS	`David H. Bailey and Jonathan M. Borwein, Experimental computation with oscillatory integrals, Comtemp. Math., to appear, 2009. [Added by N. J. A. Sloane, Nov 02 2009]`
	CROSSREFS	`Cf. A002304, A002297, A002298.` `Sequence in context: A006427 A072962 A177596 * A091535 A152130 A151625` `Adjacent sequences: A002302 A002303 A002304 * A002306 A002307 A002308`
	KEYWORD	`nonn,frac,more`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 17 06:27 EST 2012. Contains 205998 sequences.