Data:8 19/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 \frac{z^6}{a^6}+\frac{z^6}{a^8}+\frac{z^5}{a^7}+\frac{z^5}{a^9}-\frac{6 z^4}{a^6}-\frac{6 z^4}{a^8}-\frac{5 z^3}{a^7}-\frac{5 z^3}{a^9}+\frac{10 z^2}{a^6}+\frac{10 z^2}{a^8}+\frac{5 z}{a^7}+\frac{5 z}{a^9}-\frac{5}{a^6}-\frac{5}{a^8}-\frac{1}{a^{10}}}