A025292 Numbers that are the sum of 2 nonzero squares in exactly 9 ways.

71825, 93925, 122525, 143650, 156325, 173225, 187850, 209525, 223925, 244205, 245050, 257725, 267325, 273325, 287300, 296225, 308425, 312650, 346450, 357425, 375700, 376025, 382925, 409825, 419050, 426725, 440725, 444925, 447850, 460525

Offset: 1

Author

David W. Wilson

Keywords

• nonn

Links

• Donovan Johnson, Table of n, a(n) for n = 1..1000
• Index entries for sequences related to sums of squares

Programs

Mathematica

Transpose[Select[Split[Sort[Total[#]&/@(Subsets[Range[1000],{2}]^2)]], Length[#]==9&]][[1]] (* Harvey P. Dale, Jul 08 2011 *)