A031004 Position of n-th 5 in A030998.
5, 18, 32, 46, 60, 63, 65, 67, 69, 71, 73, 74, 75, 88, 108, 129, 150, 171, 192, 197, 200, 203, 206, 209, 212, 213, 215, 234, 255, 276, 297, 318, 339, 344, 347, 350, 353, 356, 359, 360, 362, 381, 402, 423, 444, 465, 486, 491, 494
Offset: 1