Data:L10a149/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^4 a^{-6} + a^{-6} z^{-2} +2 a^{-6} +z^6 a^{-4} +z^4 a^{-4} -4 z^2 a^{-4} -2 a^{-4} z^{-2} -7 a^{-4} +z^6 a^{-2} +3 z^4 a^{-2} +6 z^2 a^{-2} + a^{-2} z^{-2} +6 a^{-2} -z^4-2 z^2-1}