id:A118283 - OEIS Search Results

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Conjectured number of numbers that are not the sum of three generalized n-gonal numbers, or -1 if infinite.

+0
3

0, -1, 0, 0, 4, -1, 26, 45, 94, -1, 196, -1, 370, -1, 641, 743, 999, -1, 1537, 1429, 2619 (list; graph; listen)

	OFFSET	`3,5`
	COMMENT	`See A118282 for the conjectured largest number that is not the sum of three generalized n-gonal numbers. For n=7, only four numbers are not representable: 10, 16, 76, and 307.`
	CROSSREFS	`Cf. A118278-A118285.` `Sequence in context: A136234 A135897 A039816 this_sequence A095891 A095887 A137906` `Adjacent sequences: A118280 A118281 A118282 this_sequence A118284 A118285 A118286`
	KEYWORD	`sign`
	AUTHOR	`T. D. Noe (noe(AT)sspectra.com), Apr 21 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.