Data:K11a266/HOMFLYPT Polynomial

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