Data:K12a1075/Jones 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 q^8-4 q^7+9 q^6-15 q^5+21 q^4-26 q^3+28 q^2-26 q+22-15 q^{-1} +9 q^{-2} -4 q^{-3} + q^{-4} }