A025290 Numbers that are the sum of 2 nonzero squares in exactly 7 ways.
105625, 180625, 203125, 265625, 406250, 422500, 453125, 525625, 531250, 578125, 640625, 714025, 722500, 812500, 828125, 855625, 906250, 950625, 953125, 1050625, 1062500, 1140625, 1156250, 1281250, 1390625, 1515625, 1578125, 1625000, 1625625
Offset: 1