Data:L11a319/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^7 \left(-z^3\right)-2 a^7 z+a^5 z^5+2 a^5 z^3+2 a^3 z^5+6 a^3 z^3+3 a^3 z+a z^5+3 a z^3-z^3 a^{-1} +2 a z+a z^{-1} -3 z a^{-1} - a^{-1} z^{-1} }