59044domain: NAppears in sequencesa(n) = 9^n - n.at n=5A024102a(n) = 3^n - 5.at n=10A168613Monotonic ordering of nonnegative differences 3^i-5^j, for 40>= i>=0, j>=0.at n=41A192149Monotonic ordering of nonnegative differences 9^i-5^j, for 40>= i>=0, j>=0.at n=22A192200Expansion of Product_{k>=2} (1 + x^k)/(1 - x^k).at n=36A300415