Braid #147

Braid group element: $\sigma_{1}^{2} \sigma_{2}^{-1} \sigma_{1}^{1} \sigma_{2}^{-1} \sigma_{1}^{1} \sigma_{2}^{-2} \sigma_{3}^{-1} \sigma_{2}^{1} \sigma_{3}^{-1}\in B_{4}$
Plot:

Determinant: $$\frac{-2t^{6} + 9t^{5} - 19t^{4} + 25t^{3} - 19t^{2} + 9t - 2}{t^{3}}$$ Signatures:

$0$

Gael Collinet and Pierre Guillot, 2010.