Data:L7a6/HOMFLYPT Polynomial

From Knot Atlas

−z⁵a⁻³ + z³a⁻¹−4z³a⁻³ + z³a⁻⁵ + 3za⁻¹−4za⁻³ + 2za⁻⁵ + a⁻¹z⁻¹−a⁻³z⁻¹