Data:10 62/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^6 a^{-2} +7 z^6 a^{-4} -z^6 a^{-6} -5 z^4 a^{-2} +18 z^4 a^{-4} -5 z^4 a^{-6} -7 z^2 a^{-2} +20 z^2 a^{-4} -8 z^2 a^{-6} -2 a^{-2} +7 a^{-4} -4 a^{-6} }