Data:K12a1041/HOMFLYPT Polynomial

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle z^8 a^{-4} +z^8 a^{-6} -z^6 a^{-2} +3 z^6 a^{-4} +3 z^6 a^{-6} -z^6 a^{-8} -2 z^4 a^{-2} +2 z^4 a^{-4} +3 z^4 a^{-6} -2 z^4 a^{-8} +z^2 a^{-2} -z^2 a^{-4} +3 z^2 a^{-6} -z^2 a^{-8} +2 a^{-2} -2 a^{-4} +2 a^{-6} - a^{-8} }