A138260 Smallest positive integer m such that n divides [7^m/m] (=A129797(m)).

1, 2, 2, 2, 4, 2, 1, 2, 13, 4, 20, 2, 12, 11, 4, 11, 16, 13, 3, 4, 11, 20, 67, 2, 4, 12, 19, 11, 43, 4, 60, 13, 20, 16, 13, 13, 9, 3, 12, 4, 10, 11, 6, 20, 13, 67, 66, 11, 7, 4, 16, 12, 79, 19, 20, 11, 3, 43, 78, 4, 51, 60, 13, 17, 12, 20, 75, 16, 67, 13, 52, 13, 24, 9, 4, 6, 31, 12, 35