A031052 Position of n-th 6 in A031045.
6, 20, 36, 52, 68, 84, 89, 91, 93, 95, 97, 99, 100, 101, 103, 116, 138, 162, 186, 210, 234, 258, 265, 268, 271, 274, 277, 280, 282, 283, 286, 306, 330, 354, 378, 402, 426, 450, 457, 460, 463, 466, 469, 472, 474, 475, 478, 498, 522
Offset: 1