A024510 Positions of even numbers in A004431 (sums of 2 distinct nonzero squares).
2, 5, 7, 9, 11, 14, 15, 17, 20, 22, 23, 24, 27, 29, 31, 32, 35, 37, 39, 40, 43, 44, 48, 49, 51, 53, 54, 58, 60, 61, 63, 64, 65, 68, 70, 72, 74, 76, 78, 82, 83, 87, 88, 90, 91, 93, 95, 97, 99, 102, 103, 104, 107, 108, 109, 112, 115, 116, 118, 120, 122, 125, 126, 128, 131, 132, 135
Offset: 1