Data:L11a386/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^6 z^{-2} +a^6-3 a^4 z^2-a^4 z^{-2} -z^2 a^{-4} -4 a^4+3 a^2 z^4+2 z^4 a^{-2} +3 a^2 z^2-2 a^2 z^{-2} - a^{-2} z^{-2} -a^2-3 a^{-2} -z^6+4 z^2+3 z^{-2} +7}