Data:L10a50/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^{11} z-a^{11} z^{-1} -a^9 z^3+2 a^9 z+2 a^9 z^{-1} -3 a^7 z^3-2 a^7 z-3 a^5 z^3-3 a^5 z-a^5 z^{-1} -a^3 z^3}