id:A122924 - OEIS Search Results

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Express n as the sum of four squares, x^2+y^2+z^2+w^2, x>=y>=z>=w>=0, sequentially minimizing the value of x, y and z. a(n) is that w.

+0
4

0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 2, 0, 1, 0, 1, 2, 0, 1, 0, 1, 2, 0, 1, 0, 1, 2, 0, 2, 0, 1, 3, 1, 2, 1, 2, 0, 1, 3, 1, 2, 1, 2, 0, 1, 3, 1, 2, 2, 2, 1, 0, 3, 1, 3, 1, 2, 1, 2, 4, 2, 3, 1, 3, 1, 2, 1, 2, 4, 2, 3, 1, 3, 1, 2, 2, 2, 4, 3, 3, 2, 3, 1, 0, 1, 2, 4, 2, 4, 2, 3, 0, 3, 1, 3, 5, 2, 4, 2, 4 (list; graph; listen)

	OFFSET	`0,17`
	EXAMPLE	`10 = 2^2 + 2^2 + 1^2 + 1^2, so a(10) = 1. The only representation for 11 is 3^2 + 1^2 + 1^2 + 0^2, so a(11) = 1.`
	CROSSREFS	`Cf. A122921, A122922, A122923, A002331.` `Adjacent sequences: A122921 A122922 A122923 this_sequence A122925 A122926 A122927` `Sequence in context: A132343 A119346 A014586 this_sequence A133450 A029410 A054528`
	KEYWORD	`nonn`
	AUTHOR	`Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Sep 19 2006`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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