4430766096domain: NAppears in sequencesa(n) = (10*n + 8)^4.at n=25A017368a(n) = (11*n + 5)^4.at n=23A017452a(n) = (12*n + 6)^4.at n=21A017596Fourth powers m^4 none of whose digits are present in their corresponding roots m.at n=23A113316Exclusionary biquadrates (fourth powers).at n=19A113317