a(n) = phi(A000058(n)) where phi is the Euler totient function and A000058 is Sylvester's sequence.
A367132
a(n) = phi(A000058(n)) where phi is the Euler totient function and A000058 is Sylvester's sequence.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =42a(4) =1656a(5) =3263442
External references
- oeis: A367132