Data:K11n70/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^6 a^{-2} -6 z^4 a^{-2} +z^4 a^{-4} +z^4-11 z^2 a^{-2} +4 z^2 a^{-4} +4 z^2-6 a^{-2} +3 a^{-4} +4}