Data:10 142/HOMFLYPT Polynomial

Failed to parse (syntax error): {\displaystyle z^6 a^{-6} +z^6 a^{-8} +5 z^4 a^{-6} +5 z^4 a^{-8} -z^4 a^{-10} }+6 z^2 a^{-6} +7 z^2 a^{-8} -5 z^2 a^{-10} }+ a^{-6} +4 a^{-8} -5 a^{-10} }+ a^{-12} }}