Data:L9a46/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^4 z^2+a^4 z^{-2} +2 a^2 z^4+z^4 a^{-2} +3 a^2 z^2+z^2 a^{-2} -2 a^2 z^{-2} -a^2-z^6-3 z^4-3 z^2+ z^{-2} +1}