78044domain: NAppears in sequencesa(n) = floor(1/{(10+n^4)^(1/4)}), where {}=fractional part.at n=57A184634Monotonic ordering of nonnegative differences 5^i-3^j, for 40>=i>=0, j>=0.at n=40A192150Monotonic ordering of nonnegative differences 5^i-9^j, for 40>= i>=0, j>=0.at n=22A192199