Data:K12n852/HOMFLYPT Polynomial

Failed to parse (syntax error): {\displaystyle z^8-a^2 z^6-z^6}{a^2}+ $Failed^{-1} +5 z^6-3 a^2 z^4-2 z^4}{a^2}+ $Failed^{-1} +9 z^4-3 a^2 z^2-z^2}{a^4}+ $Failed^{-1} +5 z^2+2}{a^2}- $Failed^{-1} -1}{a^4} $Failed^{-1} }