If A327928(n) is zero, a(n) = A003415(n), otherwise a(n) = A327859(n) = A276086(A003415(n)).

Terms

a(0) =0a(1) =1a(2) =1a(3) =9a(4) =1a(5) =5a(6) =1a(7) =25a(8) =6a(9) =7a(10) =1a(11) =225a(12) =1a(13) =9a(14) =15a(15) =21a(16) =1a(17) =21a(18) =1a(19) =625a(20) =10a(21) =13a(22) =1a(23) =525a(24) =10a(25) =15a(26) =3750a(27) =21a(28) =1a(29) =31