id:A088920 - OEIS Search Results

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Solutions k to the Diophantine equation k = 2n^2 = m^2+1.

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2, 50, 1682, 57122, 1940450, 65918162, 2239277042, 76069501250, 2584123765442, 87784138523762, 2982076586042450, 101302819786919522, 3441313796169221282, 116903366249966604050, 3971273138702695316402 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Eric Weisstein's World of Mathematics, NSW Number`
	FORMULA	`G.f.: (2x^2-20x+2)/[(1-x)(1-34x+x^2)].`
	CROSSREFS	`Corresponding solutions of n are A001653 and m are A002315.` `A008843(n-1) + 1.` `Sequence in context: A083939 A083941 A080263 this_sequence A079198 A080293 A084107` `Adjacent sequences: A088917 A088918 A088919 this_sequence A088921 A088922 A088923`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Oct 23, 2003`

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

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