id:A014465 - OEIS Search Results

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Let b(n) = n-th number of form x^2+y^2+z^2, x,y,z >= 1 (A000408); a(n) = number of solutions (x,y,z) to x^2+y^2+z^2=b(n).

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1, 3, 3, 3, 1, 6, 3, 3, 3, 6, 3, 3, 6, 4, 6, 6 (list; graph; listen)

	OFFSET	`1,2`
	EXAMPLE	`b(1) = 3 = 1^2+1^2+1^2 (1 way), so a(1) = 1; b(2) = 6 = 2^2+1^2+1^2 (3 ways), so a(2) = 3; etc.`
	CROSSREFS	`Sequence in context: A140366 A123073 A059289 this_sequence A076237 A128210 A016651` `Adjacent sequences: A014462 A014463 A014464 this_sequence A014466 A014467 A014468`
	KEYWORD	`nonn,easy`
	AUTHOR	`Tim Royappa (royappa(AT)uwf.edu), 1997; entry revised Jun 13, 2003.`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.