Data:K12a49/HOMFLYPT Polynomial

[math]\displaystyle{ -z^4 a^8-z^2 a^8-a^8+z^6 a^6-2 z^2 a^6-2 a^6+3 z^6 a^4+9 z^4 a^4+12 z^2 a^4+6 a^4+z^6 a^2-2 z^2 a^2-2 a^2-z^4-z^2 }[/math]