Data:L11n257/HOMFLYPT Polynomial

$-a^{10} z^{-2} -a^{10}+3 z^2 a^8+3 a^8 z^{-2} +5 a^8-2 z^4 a^6-5 z^2 a^6-2 a^6 z^{-2} -5 a^6-z^4 a^4-z^2 a^4-a^4 z^{-2} -2 a^4+2 z^2 a^2+a^2 z^{-2} +3 a^2$