Data:L11n421/HOMFLYPT Polynomial

From Knot Atlas

z⁶−a²z⁴−2z⁴a⁻² + 5z⁴−3a²z²−8z²a⁻² + z²a⁻⁴ + 8z²−a²−8a⁻² + 3a⁻⁴ + 6−2a⁻²z⁻² + a⁻⁴z⁻² + z⁻²