Data:K12n886/HOMFLYPT Polynomial

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