Numbers k such that k = s^phi(phi(s)) where s is sum of its digits.
A135236
Numbers k such that k = s^phi(phi(s)) where s is sum of its digits.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =81a(6) =234256a(7) =614656a(8) =1679616a(9) =24794911296
External references
- oeis: A135236