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Search: id:A008453
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| A008453 |
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Number of ways of writing n as a sum of 11 squares. |
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+0
1
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| 1, 22, 220, 1320, 5302, 15224, 33528, 63360, 116380, 209550, 339064, 491768, 719400, 1095160, 1538416, 1964160, 2624182, 3696880, 4763220, 5686648, 7217144, 9528816, 11676280, 13495680, 16317048, 20787470, 25022184, 27785120, 32503680
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OFFSET
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0,2
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REFERENCES
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E. Grosswald, Representations of Integers as Sums of Squares. Springer-Verlag, NY, 1985, p. 121.
G. H. Hardy and E. M. Wright, An Introduction to the Theory of Numbers. 3rd ed., Oxford Univ. Press, 1954, p. 314.
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LINKS
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T. D. Noe, Table of n, a(n) for n=0..10000
Index entries for sequences related to sums of squares
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MAPLE
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(sum(x^(m^2), m=-10..10))^11;
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MATHEMATICA
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Needs["NumberTheory`NumberTheoryFunctions`"]; Table[SumOfSquaresR[11, n], {n, 0, 28}] (*Chandler*)
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CROSSREFS
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Sequence in context: A022714 A125385 A126543 this_sequence A066573 A121087 A133719
Adjacent sequences: A008450 A008451 A008452 this_sequence A008454 A008455 A008456
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KEYWORD
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nonn
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AUTHOR
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njas
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EXTENSIONS
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Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 28 2006
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