Data:K11n137/HOMFLYPT Polynomial

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