Data:K12n870/HOMFLYPT Polynomial

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