A076769 Integers not expressible as the sum of a triangular number and a square.

8, 9, 13, 18, 20, 23, 27, 33, 34, 38, 41, 43, 47, 48, 58, 60, 62, 63, 68, 69, 73, 76, 83, 86, 88, 89, 90, 93, 97, 98, 99, 108, 111, 112, 113, 118, 123, 125, 132, 133, 134, 135, 138, 139, 143, 144, 146, 148, 151, 158, 160, 163, 164, 167, 168, 173, 174, 177, 181, 182