A050348 Number of factorizations into distinct factors with 2 levels of parentheses indexed by prime signatures. A050347(A025487).
1, 1, 1, 4, 4, 10, 7, 26, 22, 14, 34, 63, 74, 29, 105, 143, 223, 57, 296, 312, 320, 154, 366, 617, 110, 769, 1087, 697, 641, 1136, 1589, 217, 1906, 3394, 1483, 2224, 3246, 1562, 3919, 417, 4251, 4561, 3175, 3858, 9736, 3111, 6910, 8772, 6183, 9327, 794
Offset: 1