Data:L11a475/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^2-2 a^4 z^{-2} -z^2 a^{-4} -4 a^4+3 a^2 z^4+2 z^4 a^{-2} +4 a^2 z^2+a^2 z^{-2} +z^2 a^{-2} +3 a^2-z^6-z^4-z^2}