A050337 Number of factorizations with one level of parentheses indexed by prime signatures. A050336(A025487).
1, 1, 3, 3, 6, 9, 14, 23, 12, 27, 31, 57, 41, 58, 83, 131, 119, 111, 222, 154, 295, 60, 249, 322, 223, 537, 482, 637, 231, 698, 810, 424, 1280, 1390, 1350, 745, 1811, 634, 1955, 817, 1619, 2895, 969, 2066, 3705, 2789, 2185, 4513, 2122, 4525, 1527, 4934
Offset: 1