759333136domain: NAppears in sequencesa(n) = (9*n + 4)^4.at n=18A017212a(n) = (10*n + 6)^4.at n=16A017344a(n) = (11*n + 1)^4.at n=15A017404a(n) = (12*n + 10)^4.at n=13A017644