Data:K15a76488/Alexander 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 4 t^4-33 t^3+113 t^2-219 t+271-219 t^{-1} +113 t^{-2} -33 t^{-3} +4 t^{-4} }