Euler's totient of prime(n)! / prime(n)# + 1.

A103896

Euler's totient of prime(n)! / prime(n)# + 1.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =20a(4) =15700a(5) =161520a(6) =659739168a(7) =11887243200

External references