Data:K11a322/HOMFLYPT 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 -z^4 a^6-z^2 a^6-2 a^6+z^6 a^4+2 z^4 a^4+5 z^2 a^4+4 a^4+z^6 a^2-2 z^2 a^2-2 a^2-2 z^4-z^2+1+z^2 a^{-2} }