Data:L10a71/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} +a z^5-3 z^5 a^{-1} +2 z^5 a^{-3} +a z^3-2 z^3 a^{-1} +4 z^3 a^{-3} -z^3 a^{-5} -a z+2 z a^{-1} +z a^{-3} -z a^{-5} + a^{-1} z^{-1} - a^{-3} z^{-1} }