84477domain: NAppears in sequencesGiven the infinite continued fraction i+(i/(i+(i/(i+...)))), where i is the square root of (-1), this is the numerator of the imaginary part of the convergents.at n=17A091808a(n) = 9^n-8^n-7^n-6^n-5^n-4^n-3^n-2^n-1.at n=6A147996Maximum of s^n - Sum_{0 < x < s} x^n.at n=6A332097