396032domain: NAppears in sequencesa(n) = floor((1287/545)^n).at n=14A063636Triangle read by rows, T(n,k) for 0<=k<=n, generalizes the Motzkin lattice paths with weights of A003645.at n=38A201639a(n) is the denominator of (1134*n^3 + 2097*n^2 + 1188*n + 193)/(10368*n^4 + 20736*n^3 + 14112*n^2 + 3744*n + 320).at n=2A374608