The compositional inverse of n -> n^[isprime(n)], where [b] is the Iverson bracket of b.

A357588

The compositional inverse of n -> n^[isprime(n)], where [b] is the Iverson bracket of b.

Terms

    a(0) =1a(1) =-2a(2) =5a(3) =-11a(4) =6a(5) =146a(6) =-1295a(7) =7712a(8) =-36937a(9) =141514a(10) =-357676a(11) =-322973a(12) =12078666a(13) =-102218510a(14) =623243991a(15) =-3041134727a(16) =11440387382a(17) =-23657862864a(18) =-95377084665

External references