id:A068552 - OEIS Search Results

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2n*binomial(2n,n) - 4^n.

+0
1

-1, 0, 8, 56, 304, 1496, 6992, 31664, 140384, 613016, 2646544, 11325200, 48122528, 203306736, 854829344, 3579783776, 14939605184, 62162742296, 257985394064, 1068242117456, 4414349525024, 18208784215376, 74988168359264, 308369069291936 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Known to be >= 0 for n>0.`
	REFERENCES	`Hojoo Lee, Posting to Number Theory List, Feb 18 2002.`
	CROSSREFS	`Sequence in context: A118772 A003210 A135417 this_sequence A034006 A081626 A003494` `Adjacent sequences: A068549 A068550 A068551 this_sequence A068553 A068554 A068555`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Mar 23 2002`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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