Data:K11a297/HOMFLYPT Polynomial

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