Data:L11a40/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+6 a z^3-9 z^3 a^{-1} +5 z^3 a^{-3} -z^3 a^{-5} -2 a^3 z+8 a z-10 z a^{-1} +5 z a^{-3} -z a^{-5} -a^3 z^{-1} +4 a z^{-1} -4 a^{-1} z^{-1} + a^{-3} z^{-1} }