id:A055504 - OEIS Search Results

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n*(n-1)*(n-2)*(n-3)*(n-4)*(2*n-1)/72.

+0
1

0, 0, 0, 0, 0, 15, 110, 455, 1400, 3570, 7980, 16170, 30360, 53625, 90090, 145145, 225680, 340340, 499800, 717060, 1007760, 1390515, 1887270, 2523675, 3329480, 4338950, 5591300, 7131150, 9009000, 11281725, 14013090, 17274285, 21144480 (list; graph; listen)

	OFFSET	`0,6`
	REFERENCES	`L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 73, Problem 3.`
	CROSSREFS	`Sequence in context: A012507 A041426 A074877 this_sequence A060931 A107585 A054367` `Adjacent sequences: A055501 A055502 A055503 this_sequence A055505 A055506 A055507`
	KEYWORD	`nonn`
	AUTHOR	`njas, Jul 10 2000`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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