A025311 Numbers that are the sum of 2 distinct nonzero squares in exactly 10 ways.

138125, 235625, 276250, 300625, 308125, 333125, 393125, 430625, 435625, 471250, 495625, 552500, 563125, 593125, 601250, 616250, 648125, 666250, 670625, 723125, 743125, 775625, 786250, 788125, 820625, 861250, 871250, 885625, 918125, 942500

Offset

1,1

Links

Donovan Johnson, Table of n, a(n) for n = 1..1000

Index entries for sequences related to sums of squares

Mathematica

nn = 942500; t = Table[0, {nn}]; lim = Floor[Sqrt[nn - 1]]; Do[num = i^2 + j^2; If[num <= nn, t[[num]]++], {i, lim}, {j, i - 1}]; Flatten[Position[t, 10]] (* T. D. Noe, Apr 07 2011 *)

Crossrefs

Cf. A025293.

Sequence in context: A025301 A025320 A025293 * A081429 A236662 A251979

Adjacent sequences: A025308 A025309 A025310 * A025312 A025313 A025314

Keyword

nonn

Author

David W. Wilson

Status

approved