id:A014481 - OEIS Search Results

Search: id:A014481

Displaying 1-1 of 1 results found.

page 1

2^n*n!*(2*n+1).

+0
3

1, 6, 40, 336, 3456, 42240, 599040, 9676800, 175472640, 3530096640, 78033715200, 1880240947200, 49049763840000, 1377317368627200, 41421544567603200, 1328346084409344000, 45249466617298944000, 1631723190138961920000 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Denominators of expansion of int(exp(-(t^2)/2),t,0..x)= sqrt(Pi/2)erf(x/sqrt(2)) in powers x^(2n+1), n>=0. Numerators are (-1)^n. - W. Lang, Jun 29 2007.`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	FORMULA	`Expansion of (1+2x)/(1-2x)^2.`
	CROSSREFS	`Contribution from Johannes W. Meijer (meijgia(AT)hotmail.com), Nov 12 2009: (Start)` `Appears in A167572.` `Equals row sums of A167583.` `(End)` `Sequence in context: A138240 A083805 A006387 this_sequence A000683 A143342 A084270` `Adjacent sequences: A014478 A014479 A014480 this_sequence A014482 A014483 A014484`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

page 1

Search completed in 0.002 seconds

Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

AT&T Labs Research