47067
domain: N
Appears in sequences
- Numbers k such that j(k)*phi(k) = sigma(phi(k)), j(k) = A033831(k).at n=35A033856
- a(n) = 28*n^2 - 1.at n=40A158554
- Numbers n such that uphi(n) = uphi(n+1), where uphi(n) is the unitary totient function (A047994).at n=39A287055
- Numbers k such that iphi(k) = iphi(k+1), where iphi(k) is an infinitary analog to the Euler totient function (A091732).at n=33A326403
- Numbers k such that 14^k - 3 is prime.at n=18A339924