52298domain: NAppears in sequencesNumber of distinct differences between consecutive divisors of n! (ordered by size).at n=22A060737Numbers 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.at n=0A291869