Data:L10n21/HOMFLYPT Polynomial

From Knot Atlas

z⁵a⁻³−2z³a⁻¹ + 3z³a⁻³−z³a⁻⁵ + az−3za⁻¹ + 3za⁻³−za⁻⁵ + az⁻¹−a⁻¹z⁻¹