41044domain: NAppears in sequencesAbundance of A181595(n).at n=57A181596Abundance d = sigma(N) - 2*N = A033880(N) of numbers N = A153501(n), i.e., N has d > 0 as divisor.at n=60A182142Starts of runs of 3 consecutive factorial base Niven numbers (A118363).at n=16A328206a(n) is the sum of the divisors of n!+1.at n=8A366758