403982domain: NAppears in sequencesNumbers x such that 0 < |x^9 - y^7| < x^(47/7) for some number y.at n=4A173370Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1) + b(n-2) - n, where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.at n=23A294417