Data:K11n129/HOMFLYPT Polynomial

[math]\displaystyle{ -z^4 a^6-3 z^2 a^6-3 a^6+z^6 a^4+5 z^4 a^4+10 z^2 a^4+6 a^4-2 z^4 a^2-5 z^2 a^2-3 a^2+z^2+1 }[/math]