A062863 Numbers which cannot be written as sums of squares of consecutive numbers (even allowing squares of negative numbers).

3, 7, 8, 11, 12, 17, 18, 20, 21, 22, 23, 24, 26, 27, 32, 33, 34, 37, 38, 39, 40, 42, 43, 45, 46, 47, 48, 51, 52, 53, 57, 58, 59, 62, 63, 65, 66, 67, 68, 70, 71, 72, 73, 74, 75, 76, 78, 79, 80, 82, 83, 84, 87, 88, 89, 93, 94, 95, 97, 98, 99, 101, 102, 103, 104, 106, 107, 108