A056952 - OEIS

This site is supported by donations to The OEIS Foundation.

A056952

Numerators of continued fraction for alternating factorial.

0, 1, 1, 2, 4, 8, 20, 44, 124, 300, 920, 2420, 7940, 22460, 78040, 235260, 859580, 2741660, 10477880, 35152820, 139931620, 491459820, 2030707640, 7436765660, 31805257340, 121046445260, 534514790680, 2108118579060, 9591325648580 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,4`
	FORMULA	`a[0]=0; a[1]=1; a[n]=a[n-1]+[n/2]a[n-2]` `a(2n) = A002793(n); a(2n-1) = A002793(n) - n A002793(n-1). [From Max Alekseyev (maxale(AT)gmail.com), Jul 07 2010]`
	CROSSREFS	`Cf. A002793.` `Sequence in context: A105319 A051389 A078006 * A121703 A115219 A078160` `Adjacent sequences: A056949 A056950 A056951 * A056953 A056954 A056955`
	KEYWORD	`nonn`
	AUTHOR	`Aleksandar Petojevic (apetoje(AT)ptt.yu), Sep 05 2000`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), Sep 07 2000`

Content is available under The OEIS End-User License Agreement .

Last modified February 16 17:11 EST 2012. Contains 205938 sequences.