Data:L11n263/HOMFLYPT Polynomial

[math]\displaystyle{ a^8 z^{-2} -2 a^6 z^{-2} -3 a^6-a^4 z^4+a^4 z^2+a^4 z^{-2} +3 a^4+a^2 z^6+3 a^2 z^4+3 a^2 z^2-z^4-z^2 }[/math]