A089540 Lesser prime factor of semiprimes in A089539.
2, 2, 3, 5, 11, 7, 71, 61, 5, 11, 3, 97, 83, 23, 7, 2, 3, 263, 71, 20639383, 11, 281421719, 3, 811, 401, 1697, 110298581317, 29, 33619, 2, 19, 11, 11, 67411, 7, 3, 126397507816417, 14029308060317546154181, 13, 9649, 53, 2044687972231331951
Offset: 1