Data:L9a51/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^2 a^{-6} + a^{-6} z^{-2} + a^{-6} -2 z^4 a^{-4} -4 z^2 a^{-4} -2 a^{-4} z^{-2} -3 a^{-4} +z^6 a^{-2} +3 z^4 a^{-2} +3 z^2 a^{-2} + a^{-2} z^{-2} + a^{-2} -z^4-z^2+1}