Data:8 12/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 z^7+\frac{z^7}{a}+2 a^2 z^6+\frac{2 z^6}{a^2}+4 z^6+2 a^3 z^5+2 a z^5+\frac{2 z^5}{a}+\frac{2 z^5}{a^3}+a^4 z^4-a^2 z^4-\frac{z^4}{a^2}+\frac{z^4}{a^4}-4 z^4-3 a^3 z^3-3 a z^3-\frac{3 z^3}{a}-\frac{3 z^3}{a^3}-2 a^4 z^2-2 a^2 z^2-\frac{2 z^2}{a^2}-\frac{2 z^2}{a^4}+a^3 z+\frac{z}{a^3}+a^4+a^2+\frac{1}{a^2}+\frac{1}{a^4}+1}