id:A051047 - OEIS Search Results

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a(1) = 1; for n > 1, a(n) is smallest number > a(n-1) such that a(n-1)*a(n) + 1 is a square.

+0
4

1, 3, 8, 120, 1680, 23408, 326040, 4541160, 63250208, 880961760, 12270214440, 170902040408, 2380358351280, 33154114877520, 461777249934008, 6431727384198600, 89582406128846400, 1247721958419651008 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Cf. A051048. Essentially the same as A045899.` `Sequence in context: A123279 A134803 A030063 this_sequence A036504 A132491 A083112` `Adjacent sequences: A051044 A051045 A051046 this_sequence A051048 A051049 A051050`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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Last modified July 8 18:40 EDT 2008. Contains 141013 sequences.

AT&T Labs Research