A166052 Second row of A166091. Positions of 3's in A166086.
2, 79, 151, 175, 223, 265, 275, 283, 361, 373, 571, 595, 635, 805, 991, 1063, 1153, 1201, 1285, 1301, 1351, 1423, 1445, 1495, 1561, 1621, 1651, 1699, 1735, 1873, 1981, 2125, 2275, 2281, 2413, 2545, 2653, 2683, 3013, 3301, 3331, 3385, 3535
Offset: 1
Keywords
Crossrefs
See A166053.