Data:L10n9/HOMFLYPT Polynomial

From Knot Atlas

a³z⁻¹−za−az⁻¹−za⁻¹−a⁻¹z⁻¹ + z³a⁻³ + 3za⁻³ + 2a⁻³z⁻¹−za⁻⁵−a⁻⁵z⁻¹