Data:L10n20/HOMFLYPT Polynomial

From Knot Atlas

a⁵z⁻¹ + z³a³−za³−2a³z⁻¹−z⁵a−2z³a−za + az⁻¹ + 2z³a⁻¹ + 3za⁻¹ + a⁻¹z⁻¹−za⁻³−a⁻³z⁻¹