Number of ordered factorizations with 2 levels of parentheses indexed by prime signatures.

Terms

a(0) =1a(1) =1a(2) =4a(3) =7a(4) =16a(5) =40a(6) =64a(7) =208a(8) =73a(9) =256a(10) =292a(11) =1024a(12) =544a(13) =1024a(14) =1840a(15) =4864a(16) =3472a(17) =4096a(18) =10624a(19) =4936a(20) =22528a(21) =1015a(22) =13552a(23) =20224a(24) =16384a(25) =57856a(26) =36976a(27) =102400a(28) =9328a(29) =89344