id:A056890 - OEIS Search Results

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Denominators of continued fraction for left factorial.

+0
2

1, -1, 0, -1, -2, 1, 1, 0, 1, -1, -4, 3, 14, -11, -63, 52, 353, -301, -2356, 2055, 18194, -16139, -159335, 143196, 1559017, -1415821, -16846656, 15430835, 199185034, -183754199, -2557127951, 2373373752, 35416852081, -33043478329, -526322279512, 493278801183, 8352696141782 (list; graph; listen)

	OFFSET	`0,5`
	FORMULA	`a(0)=1; a(1)=-1; a(2n)=na(2n-1)+a(2n-2); a(2n+1)= - a(2n)+a(2*n-1)`
	CROSSREFS	`Cf. A056889.` `Sequence in context: A147809 A096651 A114640 this_sequence A048825 A116375 A054078` `Adjacent sequences: A056887 A056888 A056889 this_sequence A056891 A056892 A056893`
	KEYWORD	`sign,frac,easy`
	AUTHOR	`Aleksandar Petojevic (apetoje(AT)ptt.yu), Sep 05 2000`
	EXTENSIONS	`More terms from James A. Sellers (sellersj(AT)math.psu.edu), Sep 06 2000 and from Larry Reeves (larryr(AT)acm.org), Sep 07 2000`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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