Data:L11n334/HOMFLYPT Polynomial

[math]\displaystyle{ -z^2 a^6-a^6+z^4 a^4+3 z^2 a^4+a^4 z^{-2} +2 a^4-2 a^2 z^{-2} -a^2-z^4-3 z^2+ z^{-2} -1+z^2 a^{-2} + a^{-2} }[/math]