A107825 Indices of primes occurring in A107805.
5, 6, 2, 9, 1, 10, 8, 7, 4, 12, 11, 13, 14, 15, 19, 18, 20, 21, 16, 3, 17, 22, 24, 23, 27, 26, 28, 25, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61
Offset: 1