Data:K11n87/HOMFLYPT Polynomial

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