Data:L9a8/HOMFLYPT Polynomial

From Knot Atlas

z⁵a⁻¹−2az³ + 2z³a⁻¹−2z³a⁻³ + a³z−3az + 3za⁻¹−2za⁻³ + za⁻⁵ + a³z⁻¹−2az⁻¹ + 2a⁻¹z⁻¹−a⁻³z⁻¹