Numbers k such that k = sigma(phi(k) + pi(k)).
A097645
Numbers k such that k = sigma(phi(k) + pi(k)).
Terms
- a(0) =1a(1) =6a(2) =54a(3) =78a(4) =1296a(5) =1482a(6) =6480a(7) =6552a(8) =14040a(9) =20160a(10) =36936a(11) =1273896
External references
- oeis: A097645