A036574 a(n) = least number not of form [ (a^2+b^2)/n ].

3, 3, 7, 19, 15, 23, 54, 187, 166, 167, 136, 329, 115, 369, 647, 323, 630, 287, 6666, 1583, 2495, 1439, 2278, 4223, 4054, 12959, 10799, 10143, 13580, 11231, 23183, 105335, 20774, 20163, 96306, 93631, 124062, 48786, 143290, 88439, 192355, 80255