Composite numbers k such that phi(k)^phi(k) == k + 1 (mod k^2).

A319370

Composite numbers k such that phi(k)^phi(k) == k + 1 (mod k^2).

Terms

    a(0) =91a(1) =18227a(2) =28605a(3) =137481a(4) =538849a(5) =2832797a(6) =3220333a(7) =384792005

External references