Data:L11n378/HOMFLYPT Polynomial

[math]\displaystyle{ -z^2 a^6-a^6 z^{-2} -2 a^6+z^4 a^4+4 z^2 a^4+4 a^4 z^{-2} +7 a^4-3 z^2 a^2-5 a^2 z^{-2} -8 a^2+2 z^{-2} +3 }[/math]