\begin{center}
\footnotesize
\setlength{\mylength}{\baselineskip}
\begin{longtable}{rp{0ex}p{9cm}p{0ex}RL}
\caption{Laurent polynomials and selected mutations for bucket 53.}\\

\toprule \multicolumn{1}{c}{{Node}}&& \multicolumn{1}{c}{{Laurent polynomial}} && \multicolumn{2}{c}{{Mutations from Figure~\ref{fig:53a}}} \\ \midrule \endfirsthead

\multicolumn{6}{c}{{\tablename\ \thetable{} -- continued from previous page}} \\ \addlinespace[1.7ex] \midrule \multicolumn{1}{c}{{Node}}&& \multicolumn{1}{c}{{Laurent polynomial}} && \multicolumn{2}{c}{{Mutations from Figure~\ref{fig:53a}}} \\ \midrule \endhead

\midrule \multicolumn{6}{c}{{Continued on next page}} \endfoot

\bottomrule \endlastfoot

183 && $x+y+z+\frac{1}{y}+\frac{y}{x}+\frac{z}{x}+\frac{2}{x}+\frac{1}{xz}$ && $189 \colon {}$ & $\left(x,\frac{y}{yz+1},\frac{y^2z}{yz+1}\right)$ \spacer \\* 
 &&  && $582 \colon {}$ & $\left(y,\frac{xy^2z+y+1}{x^2y^2z},\frac{xy}{xy^2z+y+1}\right)$ \spacer \\* 
 &&  && $623 \colon {}$ & $\left(\frac{y+z(y+1)^2}{xyz},\frac{y+z(y+1)^2}{xy},y\right)$ \spacer \\* 
 &&  && $633 \colon {}$ & $\left(y,\frac{xz+1}{x},\frac{xz+1}{x^2yz}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
189 && $x+y+z+\frac{1}{y}+\frac{y}{x}+\frac{2}{x}+\frac{1}{xy}+\frac{1}{xy^2z}$ && $183 \colon {}$ & $\left(x,y+z,\frac{z}{y(y+z)}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 582 && $x+y+z+\frac{2}{y}+\frac{1}{x}+\frac{2}{xy}+\frac{1}{xy^2}+\frac{1}{x^2yz}+\frac{2}{x^2y^2z}+\frac{1}{x^2y^3z}$ && $183 \colon {}$ & $\left(\frac{xyz+x+yz}{xy},x,\frac{1}{z(xyz+x+yz)}\right)$ \spacer \\* 
 &&  && $1145 \colon {}$ & $\left(\frac{x^3y^2}{xz+(xy+1)^2},\frac{xz+(xy+1)^2}{x^2y},\frac{1}{x^2yz}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
623 && $x+y+z+\frac{yz}{x}+\frac{y}{x}+\frac{2z}{x}+\frac{3}{x}+\frac{1}{xz}+\frac{z}{xy}+\frac{1}{xy}$ && $183 \colon {}$ & $\left(\frac{xz+y(z+1)^2}{xyz},z,\frac{y}{x}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 633 && $x+y+z+\frac{z}{y}+\frac{2}{y}+\frac{1}{x}+\frac{2}{xy}+\frac{1}{xy^2}+\frac{1}{x^2yz}+\frac{1}{x^2y^2z}$ && $183 \colon {}$ & $\left(\frac{xz+y}{xyz},x,\frac{xz^2}{xz+y}\right)$ \spacer \\* 
 &&  && $1741 \colon {}$ & $\left(\frac{xy+xz+1}{x},\frac{x^2y}{xy+xz+1},\frac{1}{x^2yz}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
1145 && $x+y+z+\frac{2z}{y}+\frac{3}{x}+\frac{3z}{xy}+\frac{2}{xy}+\frac{z^2}{xy^2}+\frac{3}{x^2y}+\frac{1}{x^2yz}+\frac{2z}{x^2y^2}+\frac{1}{x^3y^2}$ && $582 \colon {}$ & $\left(\frac{1+xyz(xy+1)^2}{x^2y^3z},\frac{x^3y^4z}{1+xyz(xy+1)^2},\frac{xy^2}{1+xyz(xy+1)^2}\right)$ \spacer \\* \rowcolor[gray]{0.95}
 &&  && $2429 \colon {}$ & $\left(\frac{x^2y}{xy+z},\frac{xy+z}{x},z\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 1741 && $x+y+z+\frac{z}{y}+\frac{3}{x}+\frac{2z}{xy}+\frac{2}{xy}+\frac{3}{x^2y}+\frac{1}{x^2yz}+\frac{z}{x^2y^2}+\frac{1}{x^3yz}+\frac{2}{x^3y^2}+\frac{1}{x^4y^2z}$ && $633 \colon {}$ & $\left(\frac{x^2y^2z+xyz+1}{x^2yz},\frac{x^3y^2z}{x^2y^2z+xyz+1},\frac{x}{x^2y^2z+xyz+1}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
2429 && $x+y+z+\frac{z}{y}+\frac{z}{x}+\frac{3}{x}+\frac{3z}{xy}+\frac{2}{xy}+\frac{3z}{x^2y}+\frac{3}{x^2y}+\frac{1}{x^2yz}+\frac{2z}{x^2y^2}+\frac{3z}{x^3y^2}+\frac{2}{x^3y^2}+\frac{z}{x^4y^3}$ && $1145 \colon {}$ & $\left(\frac{xy+z}{y},\frac{xy^2}{xy+z},z\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \end{longtable}
\end{center}
