Data:L11a158/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^7 a^{-1} +3 a z^5-4 z^5 a^{-1} +z^5 a^{-3} -3 a^3 z^3+9 a z^3-7 z^3 a^{-1} +2 z^3 a^{-3} +a^5 z-6 a^3 z+8 a z-5 z a^{-1} +z a^{-3} +a^5 z^{-1} -2 a^3 z^{-1} +2 a z^{-1} - a^{-1} z^{-1} }