Data:L10a85/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 a z^7-2 a^3 z^5+4 a z^5-z^5 a^{-1} +a^5 z^3-6 a^3 z^3+6 a z^3-2 z^3 a^{-1} +2 a^5 z-7 a^3 z+3 a z-z a^{-1} +2 a^5 z^{-1} -3 a^3 z^{-1} +a z^{-1} }