id:A068554 - OEIS Search Results

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

+0
1

-1, -2, -4, -4, 24, 236, 1448, 7640, 37424, 175436, 798984, 3565448, 15672656, 68098936, 293196944, 1253020976, 5322318944, 22491436556, 94632958664, 396682105256, 1657418948624, 6905368852136, 28697991157424, 119000162557136 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`Known to be >= 0 for n>3.`
	REFERENCES	`Hojoo Lee, Posting to Number Theory List, Feb 18 2002.`
	CROSSREFS	`Sequence in context: A103973 A129826 A009296 this_sequence A092524 A155952 A145636` `Adjacent sequences: A068551 A068552 A068553 this_sequence A068555 A068556 A068557`
	KEYWORD	`sign`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Mar 23 2002`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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