Number of factorizations into distinct factors with 3 levels of parentheses indexed by prime signatures. A050349(A025487).

A050350

Number of factorizations into distinct factors with 3 levels of parentheses indexed by prime signatures. A050349(A025487).

Terms

    a(0) =1a(1) =1a(2) =1a(3) =5a(4) =5a(5) =15a(6) =11a(7) =45a(8) =35a(9) =25a(10) =65a(11) =130a(12) =145a(13) =60a(14) =240a(15) =351a(16) =520a(17) =141a(18) =810a(19) =775a(20) =926a(21) =315a(22) =1037a(23) =1721a(24) =321a(25) =2532a(26) =3302a(27) =2392a(28) =1640a(29) =3951

External references