id:A016032 - OEIS Search Results

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Least number which is the sum of two positive squares in exactly n ways.

+0
5

2, 50, 325, 1105, 8125, 5525, 105625, 27625, 71825, 138125, 5281250, 160225, 1221025, 2442050, 1795625, 801125, 446265625, 2082925, 41259765625, 4005625, 44890625, 30525625, 61051250, 5928325, 303460625, 53955078125, 35409725 (list; graph; listen)

	OFFSET	`1,1`
	REFERENCES	`A. Beiler, Recreations in the Theory of Numbers, Dover, pp. 140-141.`
	LINKS	`C. Rivera, Puzzle 62` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.` `G. Xiao, Two squares` `Index entries for sequences related to sums of squares`
	EXAMPLE	`a(1) = 2 from 2 = 1^2 + 1^2.` `a(2) = 50 from 50 = 1^2 + 7^2 = 5^2 + 5^2.`
	CROSSREFS	`Cf. A025284-A025293 (first entries).` `Cf. A048610. See A000446 for another version.` `Sequence in context: A050800 A048610 A007511 this_sequence A080299 A083939 A083941` `Adjacent sequences: A016029 A016030 A016031 this_sequence A016033 A016034 A016035`
	KEYWORD	`nonn,nice`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com)`
	EXTENSIONS	`Corrected and extended by Jud McCranie (j.mccranie(AT)comcast.net).` `Definition improved by several correspondents, Nov 12 2007`

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

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