Data:8 19/HOMFLYPT Polynomial

[math]\displaystyle{ z^6 a^{-6} +6 z^4 a^{-6} -z^4 a^{-8} +10 z^2 a^{-6} -5 z^2 a^{-8} +5 a^{-6} -5 a^{-8} + a^{-10} }[/math]