Data:K12a1132/HOMFLYPT Polynomial

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