id:A033585 - OEIS Search Results

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2n(4n+1).

+0
11

0, 10, 36, 78, 136, 210, 300, 406, 528, 666, 820, 990, 1176, 1378, 1596, 1830, 2080, 2346, 2628, 2926, 3240, 3570, 3916, 4278, 4656, 5050, 5460, 5886, 6328, 6786, 7260, 7750, 8256, 8778, 9316, 9870, 10440 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`If Y is a fixed 3-subset of a (4n+1)-set X then a(n) is the number of (4n-1)-subsets of X intersecting Y. - Milan R. Janjic (agnus(AT)blic.net), Oct 28 2007`
	LINKS	`Milan Janjic, Two Enumerative Functions`
	MAPLE	`seq(binomial(4*n+1, 2), n=0..36); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 21 2007`
	CROSSREFS	`Sequence in context: A125550 A073613 A072517 this_sequence A118629 A050509 A118415` `Adjacent sequences: A033582 A033583 A033584 this_sequence A033586 A033587 A033588`
	KEYWORD	`nonn,easy`
	AUTHOR	`njas`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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