id:A055053 - OEIS Search Results

Search: id:A055053

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Numbers of the form 4^i*(8j+7) or 4^i*(5j+-2).

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2, 3, 7, 8, 12, 13, 15, 17, 18, 22, 23, 27, 28, 31, 32, 33, 37, 38, 39, 42, 43, 47, 48, 52, 53, 55, 57, 58, 60, 62, 63, 67, 68, 71, 72, 73, 77, 78, 79, 82, 83, 87, 88, 92, 93, 95, 97, 98, 102, 103, 107, 108, 111, 112, 113, 117, 118, 119, 122, 123 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`The numbers not of the form x^2+5y^2+5z^2.`
	REFERENCES	`L. J. Mordell, A new Waring's problem with squares of linear forms, Quart. J. Math., 1 (1930), 276-288 (see p. 283).`
	CROSSREFS	`Sequence in context: A051468 A002274 A102664 this_sequence A047221 A032967 A111101` `Adjacent sequences: A055050 A055051 A055052 this_sequence A055054 A055055 A055056`
	KEYWORD	`nonn`
	AUTHOR	`njas, Jun 02 2000`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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