Data:K12n847/HOMFLYPT Polynomial

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