158194282219domain: NAppears in sequencesa(n) = (3*a(n - 1)a(n - 5) - a(n - 2)*a(n - 4))/a(n - 6); a(0) = 1, a(1) = 1, a(2) = 1, a(3) = 1, a(4) = 1, a(5) = 1.at n=20A122024