268435428domain: NAppears in sequencesa(n) = 2^n - n.at n=28A000325a(n) = ceiling(n^(1/n))^n - n.at n=27A076878a(n) = 2^(2*n) - 2*n.at n=14A100103Numbers missing from A102370.at n=27A1023712^n minus the sum of the proper divisors of n.at n=27A2423892^phi(n) - phi(n).at n=28A243306