A308885 Positions of 0's on the spiral defined in A308884.
0, 1, 2, 3, 20, 25, 30, 35, 36, 37, 40, 41, 42, 47, 48, 49, 54, 55, 56, 63, 65, 70, 79, 88, 94, 95, 110, 112, 114, 115, 121, 123, 125, 126, 132, 134, 137, 138, 141, 143, 144, 145, 147, 149, 150, 152, 154, 155, 156, 162, 165, 167, 168, 169, 175, 178, 180, 181, 182, 195, 197
Offset: 1