Data:9 13/QuantumInvariant/A1/1

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^{-3} - q^{-5} +2 q^{-7} - q^{-9} +2 q^{-11} + q^{-13} - q^{-15} + q^{-17} -2 q^{-19} + q^{-21} - q^{-23} }