id:A011874 - OEIS Search Results

Search: id:A011874

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[ n(n-1)/21 ].

+0
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0, 0, 0, 0, 0, 0, 1, 2, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 33, 36, 38, 41, 44, 47, 50, 53, 56, 60, 63, 66, 70, 74, 78, 82, 86, 90, 94, 98, 102, 107, 112, 116, 121, 126, 131, 136, 141 (list; graph; listen)

	OFFSET	`0,8`
	FORMULA	`G.f.: x^6(1-x^2+x^3+x^9-x^10+x^12)/((1-x)^2*(1-x^21)). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 09 2008]`
	CROSSREFS	`Sequence in context: A017896 A118868 A017885 this_sequence A000115 A033552 A062420` `Adjacent sequences: A011871 A011872 A011873 this_sequence A011875 A011876 A011877`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.

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