Data:L11a149/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^7 z^5+2 a^7 z^3-a^7 z^{-1} -a^5 z^7-3 a^5 z^5-a^5 z^3+4 a^5 z+3 a^5 z^{-1} -a^3 z^7-4 a^3 z^5-7 a^3 z^3-7 a^3 z-2 a^3 z^{-1} +a z^5+3 a z^3+2 a z}