A062861 Numbers which are sums of squares of consecutive numbers (possibly including squares of negative numbers).

0, 1, 2, 4, 5, 6, 9, 10, 13, 14, 15, 16, 19, 25, 28, 29, 30, 31, 35, 36, 41, 44, 49, 50, 54, 55, 56, 60, 61, 64, 69, 77, 81, 85, 86, 90, 91, 92, 96, 100, 105, 110, 113, 121, 126, 135, 139, 140, 141, 144, 145, 146, 149, 154, 169, 170, 174, 181, 182, 190, 194, 195, 196