Data:L10n31/HOMFLYPT Polynomial

$a^{9}z^{-1}-z^{3}a^{7}-3za^{7}-2a^{7}z^{-1}+z^{5}a^{5}+3z^{3}a^{5}+3za^{5}+a^{5}z^{-1}+z^{5}a^{3}+2z^{3}a^{3}+a^{3}z^{-1}-z^{3}a-2za-az^{-1}$