a(n) = phi(n^n + n) where phi is the Euler totient function.

A377674

a(n) = phi(n^n + n) where phi is the Euler totient function.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =96a(4) =1248a(5) =12000a(6) =259200a(7) =5461344a(8) =129140160a(9) =2725643520a(10) =127561104000

External references