id:A064837 - OEIS Search Results

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a(n)= ( 6*n^4 +30*n^3 -20*n^2 +14 )*n/30 +(n mod 2).

+0
2

0, 2, 18, 114, 420, 1170, 2710, 5538, 10312, 17890, 29338, 45970, 69356, 101362, 144158, 200258, 272528, 364226, 479010, 620978, 794676, 1005138, 1257894, 1559010, 1915096, 2333346, 2821546, 3388114, 4042108, 4793266, 5652014 (list; graph; listen)

	OFFSET	`0,2`
	LINKS	`G. L. Cohen and E. Tonkes, Dartboard arrangements, Elect. J. Combin., 8 (No. 2, 2001), #R4.`
	CROSSREFS	`Sequence in context: A006043 A112328 A038721 this_sequence A027433 A007798 A058052` `Adjacent sequences: A064834 A064835 A064836 this_sequence A064838 A064839 A064840`
	KEYWORD	`nonn`
	AUTHOR	`njas, Oct 25 2001`
	EXTENSIONS	`Better description from Frank Ellermann, Mar 16 2002`

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

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