Data:K15a72575/HOMFLYPT Polynomial

[math]\displaystyle{ -z^{10} a^{-2} -z^{10}+2 a^2 z^8-4 z^8 a^{-2} +z^8 a^{-4} -3 z^8-a^4 z^6+5 a^2 z^6-8 z^6 a^{-2} +3 z^6 a^{-4} -5 z^6-a^4 z^4+5 a^2 z^4-6 z^4 a^{-2} +4 z^4 a^{-4} -3 z^4-a^2 z^2-2 z^2 a^{-2} +z^2 a^{-4} +2 z^2+a^4-3 a^2- a^{-2} +4 }[/math]