Data:K12a105/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^{-6} +z^6 a^{-4} -5 z^6 a^{-6} +3 z^6 a^{-8} +4 z^4 a^{-4} -9 z^4 a^{-6} +13 z^4 a^{-8} -3 z^4 a^{-10} +5 z^2 a^{-4} -8 z^2 a^{-6} +17 z^2 a^{-8} -10 z^2 a^{-10} +z^2 a^{-12} +2 a^{-4} -3 a^{-6} +7 a^{-8} -7 a^{-10} +2 a^{-12} }