173354domain: NAppears in sequencesa(n) = floor(9^n/7^n).at n=48A094991Number of length-n 0..3 arrays with no following elements greater than or equal to the first repeated value.at n=9A267227Expansion of e.g.f. exp(-x * (1 - x)^2) / (1 - x)^3.at n=7A375427