Data:L8a9/Kauffman 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^3 z^7-a z^7-3 a^4 z^6-6 a^2 z^6-3 z^6-3 a^5 z^5-6 a^3 z^5-6 a z^5-3 z^5 a^{-1} -a^6 z^4+3 a^4 z^4+8 a^2 z^4-z^4 a^{-2} +3 z^4+5 a^5 z^3+13 a^3 z^3+13 a z^3+5 z^3 a^{-1} +a^6 z^2-2 a^2 z^2+z^2 a^{-2} -2 a^5 z-7 a^3 z-7 a z-2 z a^{-1} -a^2+a^3 z^{-1} +a z^{-1} }