Numbers n such that sigma(phi(n)) - phi(n) = n + phi(sigma(n)-n); that is, f(g(n)) - g(f(n)) = n where f = A001065 and g = A000010.
A291869
Numbers n such that sigma(phi(n)) - phi(n) = n + phi(sigma(n)-n); that is, f(g(n)) - g(f(n)) = n where f = A001065 and g = A000010.
Terms
- a(0) =52298a(1) =88694a(2) =13868696a(3) =18816288938
External references
- oeis: A291869