Data:K15a78458/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^4-24 t^3+69 t^2-129 t+161-129 t^{-1} +69 t^{-2} -24 t^{-3} +4 t^{-4} }