Number of ordered factorizations with 3 levels of parentheses indexed by prime signatures: A050358(A025487(n)).

A050359

Number of ordered factorizations with 3 levels of parentheses indexed by prime signatures: A050358(A025487(n)).

Terms

    a(0) =1a(1) =1a(2) =5a(3) =9a(4) =25a(5) =65a(6) =125a(7) =425a(8) =121a(9) =625a(10) =605a(11) =2625a(12) =1145a(13) =3125a(14) =4825a(15) =15625a(16) =9225a(17) =15625a(18) =35125a(19) =13265a(20) =90625a(21) =2169a(22) =45225a(23) =67625a(24) =78125a(25) =240625a(26) =126025a(27) =515625a(28) =25385a(29) =377625

External references