x
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19 10 8 12 6 14 4 16 2 18 17 3 15 5 13 7 11 9
-1 + x - 92378*x - 75582*x - 50388*x - 27132*x - 11628*x - 3876*x - 969*x - 171*x - 19*x + 19*x + 171*x + 969*x + 3876*x + 11628*x + 27132*x + 50388*x + 75582*x + 92378*x
$$\frac{x}{x^{19} - 19 x^{18} + 171 x^{17} - 969 x^{16} + 3876 x^{15} - 11628 x^{14} + 27132 x^{13} - 50388 x^{12} + 75582 x^{11} - 92378 x^{10} + 92378 x^{9} - 75582 x^{8} + 50388 x^{7} - 27132 x^{6} + 11628 x^{5} - 3876 x^{4} + 969 x^{3} - 171 x^{2} + 19 x - 1}$$