Data:L11a247/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} +2 a z^5-4 z^5 a^{-1} +2 z^5 a^{-3} -a^3 z^3+5 a z^3-8 z^3 a^{-1} +5 z^3 a^{-3} -z^3 a^{-5} -a^3 z+4 a z-6 z a^{-1} +4 z a^{-3} -z a^{-5} +a z^{-1} - a^{-1} z^{-1} }