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Search: id:A095812
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| A095812 |
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Greatest number, not divisible by 4, having exactly n partitions into three positive squares. |
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+0
2
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| 793, 1885, 3763, 6307, 13843, 16003, 21547, 34483, 48427, 54763, 85507, 90787, 111763, 103387, 166147, 137083, 222643, 211843, 289963, 253507, 296587, 319867, 462883, 375523, 393187, 546067, 502483, 532123, 615883, 590947
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OFFSET
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1,1
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COMMENT
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These are conjectured values. The Mathematica program checks numbers up to 10^6.
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MATHEMATICA
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lim=1000; nLst=Table[0, {lim^2}]; Do[n=a^2+b^2+c^2; If[n>0 && n<lim^2, nLst[[n]]++ ], {a, lim}, {b, a, Sqrt[lim^2-a^2]}, {c, b, Sqrt[lim^2-a^2-b^2]}]; Table[Last[Select[Flatten[Position[nLst, k]], Mod[ #, 4]>0&]], {k, 30}]
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CROSSREFS
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Cf. A025414 (least sum of 3 nonzero squares in exactly n ways).
Sequence in context: A140909 A037146 A045246 this_sequence A130555 A133537 A075667
Adjacent sequences: A095809 A095810 A095811 this_sequence A095813 A095814 A095815
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KEYWORD
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nonn
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AUTHOR
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T. D. Noe (noe(AT)sspectra.com), Jun 07 2004
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