A175483 a(n) = larger prime factor of A175461(n).
7, 23, 11, 17, 31, 19, 47, 41, 71, 17, 79, 23, 43, 103, 31, 73, 127, 59, 23, 89, 151, 67, 97, 29, 167, 47, 41, 113, 191, 83, 31, 199, 37, 223, 137, 239, 107, 71, 263, 271, 79, 47, 53, 131, 311, 73, 193, 139, 43, 61, 359, 367, 103, 163, 383, 89, 233, 41, 241, 179, 97, 257
Offset: 1