Data:L10n20/HOMFLYPT Polynomial
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[math]\displaystyle{ a^5 z^{-1} +z^3 a^3-z a^3-2 a^3 z^{-1} -z^5 a-2 z^3 a-z a+a z^{-1} +2 z^3 a^{-1} +3 z a^{-1} + a^{-1} z^{-1} -z a^{-3} - a^{-3} z^{-1} }[/math]