id:A002828 - OEIS Search Results

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Least number of squares that add up to n.
(Formerly M0404 N0155)

+0
14

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

	OFFSET	`1,2`
	COMMENT	`By the "Four Squares theorem", a(n) <= 4.` `It is easy to show that this is also the least number of squares that add up to n^3.`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	CROSSREFS	`Cf. A000290, A000415, A000419, A004215.` `Cf. A000378, A001481.` `Adjacent sequences: A002825 A002826 A002827 this_sequence A002829 A002830 A002831` `Sequence in context: A065365 A096137 A063274 this_sequence A098066 A096436 A053610`
	KEYWORD	`nonn,nice`
	AUTHOR	`njas`
	EXTENSIONS	`More terms from Arlin Anderson (starship1(AT)gmail.com)`

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Last modified October 13 02:37 EDT 2008. Contains 145008 sequences.

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