Data:9 47/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 2 z^7 a^{-1} +2 z^7 a^{-3} +6 z^6 a^{-2} +3 z^6 a^{-4} +3 z^6+a z^5-4 z^5 a^{-1} -4 z^5 a^{-3} +z^5 a^{-5} -16 z^4 a^{-2} -7 z^4 a^{-4} -9 z^4-2 a z^3+z^3 a^{-1} +6 z^3 a^{-3} +3 z^3 a^{-5} +11 z^2 a^{-2} +9 z^2 a^{-4} +3 z^2 a^{-6} +5 z^2-2 z a^{-1} -5 z a^{-3} -3 z a^{-5} - a^{-2} -2 a^{-4} - a^{-6} +1}