a(n) = Product p_{n*i}^e_i if the prime factorization of n is Product p_i^e_i.

Terms

a(0) =1a(1) =3a(2) =13a(3) =49a(4) =47a(5) =481a(6) =107a(7) =6859a(8) =3721a(9) =3277a(10) =257a(11) =121841a(12) =397a(13) =11309a(14) =22261a(15) =7890481a(16) =653a(17) =1390861a(18) =881a(19) =1416521a(20) =78373a(21) =47479a(22) =1279a(23) =157208087a(24) =143641a(25) =92011a(26) =15813251a(27) =7018237a(28) =1889a(29) =14701639