Braid #155

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

Determinant: $$\frac{-2t^{6} + 8t^{5} - 16t^{4} + 21t^{3} - 16t^{2} + 8t - 2}{t^{3}}$$ Signatures:

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Gael Collinet and Pierre Guillot, 2010.