a(n) = phi(n^n - n) where phi is the Euler totient function.
A377678
a(n) = phi(n^n - n) where phi is the Euler totient function.
Terms
- a(0) =1a(1) =8a(2) =72a(3) =768a(4) =12400a(5) =217728a(6) =7112448a(7) =94371840a(8) =2594586816a(9) =69139840000
External references
- oeis: A377678