A024515 Positions of even numbers in A000404 (sums of 2 nonzero squares).
1, 3, 4, 7, 8, 10, 12, 13, 15, 18, 19, 21, 24, 25, 27, 28, 29, 32, 34, 35, 37, 38, 41, 43, 45, 46, 47, 50, 51, 55, 56, 57, 59, 61, 62, 66, 68, 69, 71, 72, 73, 76, 78, 80, 82, 83, 85, 87, 91, 92, 95, 97, 98, 100, 101, 103, 105, 107, 109, 112, 113, 114, 117, 118, 119, 122, 125, 126
Offset: 1