Data:L8n3/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^{12}+a^{10} z^2+a^{10} z^{-2} -3 a^{10}+a^9 z^5-5 a^9 z^3+6 a^9 z-2 a^9 z^{-1} +a^8 z^6-6 a^8 z^4+11 a^8 z^2+2 a^8 z^{-2} -8 a^8+a^7 z^5-5 a^7 z^3+6 a^7 z-2 a^7 z^{-1} +a^6 z^6-6 a^6 z^4+10 a^6 z^2+a^6 z^{-2} -5 a^6}