Data:K15a77183/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 7 t^4-47 t^3+149 t^2-277 t+337-277 t^{-1} +149 t^{-2} -47 t^{-3} +7 t^{-4} }