Data:L11n437/HOMFLYPT Polynomial

[math]\displaystyle{ a^8 z^2+a^8 z^{-2} +a^8-2 a^6 z^{-2} -3 a^6-a^4 z^6-5 a^4 z^4-5 a^4 z^2+a^4 z^{-2} +a^2 z^4+4 a^2 z^2+2 a^2 }[/math]