Data:K12a1122/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^8-a^2 z^6-3 z^6 a^{-2} +4 z^6-2 a^2 z^4-8 z^4 a^{-2} +3 z^4 a^{-4} +9 z^4-3 a^2 z^2-9 z^2 a^{-2} +5 z^2 a^{-4} -z^2 a^{-6} +9 z^2-a^2-4 a^{-2} +3 a^{-4} - a^{-6} +4}