Data:L11a228/Multivariable Alexander

[math]\displaystyle{ -\frac{2 u^2 v^4-5 u^2 v^3+6 u^2 v^2-3 u^2 v-2 u v^4+9 u v^3-13 u v^2+9 u v-2 u-3 v^3+6 v^2-5 v+2}{u v^2} }[/math]