A031040 Position of n-th 4 in A031035.
4, 17, 33, 49, 56, 58, 60, 62, 64, 65, 66, 68, 70, 81, 97, 113, 134, 158, 182, 206, 217, 220, 223, 226, 229, 230, 232, 235, 238, 254, 278, 302, 326, 350, 374, 398, 409, 412, 415, 418, 421, 422, 424, 427, 430, 446, 470, 494, 518
Offset: 1