A366256 Positions of odd numbers in May code (A303767).
1, 2, 6, 7, 8, 10, 11, 15, 16, 18, 19, 23, 24, 25, 27, 28, 34, 35, 39, 40, 41, 43, 44, 48, 49, 51, 52, 56, 57, 58, 60, 61, 66, 67, 71, 72, 73, 75, 76, 80, 81, 83, 84, 88, 89, 90, 92, 93, 99, 100, 104, 105, 106, 108, 109, 113, 114, 116, 117, 121, 122, 123, 125, 126, 130, 131, 135, 136, 137, 139, 140, 144, 145, 147
Offset: 1