429794605domain: NAppears in sequencesa(1) = 1, a(n) = n*9^(n-1) + a(n-1).at n=8A014923a(n) = Sum_{m=0..n} m*n^(m-1).at n=9A068475a(n) = Sum_{m=1..n} m*n^(m+(-1)^n).at n=9A0684761 + 2*n + 3*n^2 + 4*n^3 + 5*n^4 + 6*n^5 + 7*n^6 + 8*n^7 + 9*n^8.at n=9A113630