38742048domain: NAppears in sequencesa(n) = floor(9^9/n).at n=9A057071a(n) = floor(n^n / (n+1)).at n=9A215159a(n) = (n^9 - n)/10.at n=8A288604a(n) = (n^n + n*(-1)^n)/(n + 1).at n=8A320453