\begin{center}
\footnotesize
\setlength{\mylength}{\baselineskip}
\begin{longtable}{rp{0ex}p{9cm}p{0ex}RL}
\caption{Laurent polynomials and selected mutations for bucket 62.}\\

\toprule \multicolumn{1}{c}{{Node}}&& \multicolumn{1}{c}{{Laurent polynomial}} && \multicolumn{2}{c}{{Mutations from Figure~\ref{fig:62a}}} \\ \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:62a}}} \\ \midrule \endhead

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

\bottomrule \endlastfoot

146 && $x+y+z+\frac{1}{y}+\frac{2y}{x}+\frac{2}{x}+\frac{1}{xz}+\frac{y}{x^2}$ && $193 \colon {}$ & $\left(x,\frac{x}{y(x+1)},\frac{1}{xz}\right)$ \spacer \\* 
 &&  && $274 \colon {}$ & $\left(\frac{x^2z}{xz+1},\frac{x}{xz+1},\frac{y(xz+1)}{xz}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
193 && $x+y+z+\frac{1}{y}+\frac{y}{x}+\frac{2}{x}+\frac{1}{xz}+\frac{1}{xy}$ && $146 \colon {}$ & $\left(x,\frac{x}{y(x+1)},\frac{1}{xz}\right)$ \spacer \\* \rowcolor[gray]{0.95}
 &&  && $633 \colon {}$ & $\left(y,\frac{x^2yz}{xyz+xz+1},\frac{x}{xyz+xz+1}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 274 && $x+y+z+\frac{y}{xz}+\frac{3}{x}+\frac{2}{xz}+\frac{1}{xy}+\frac{3}{x^2z}+\frac{1}{x^3z^2}$ && $146 \colon {}$ & $\left(x+y,\frac{xz}{x+y},\frac{x}{y(x+y)}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
582 && $x+y+z+\frac{2}{y}+\frac{1}{x}+\frac{3}{xy}+\frac{1}{xy^2}+\frac{1}{x^2yz}+\frac{2}{x^2y^2z}+\frac{1}{x^2y^3z}$ && $633 \colon {}$ & $\left(x,y,\frac{y+1}{x^2y^2z}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 633 && $x+y+z+\frac{z}{y}+\frac{2}{y}+\frac{1}{x}+\frac{3}{xy}+\frac{1}{xy^2}+\frac{1}{x^2yz}+\frac{1}{x^2y^2z}$ && $193 \colon {}$ & $\left(\frac{xy+xz+y}{x},x,\frac{y}{z(xy+xz+y)}\right)$ \spacer \\* 
 &&  && $582 \colon {}$ & $\left(x,y,\frac{y+1}{x^2y^2z}\right)$ \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}
1741 && $x+y+z+\frac{z}{y}+\frac{3}{x}+\frac{2z}{xy}+\frac{3}{xy}+\frac{3}{x^2y}+\frac{1}{x^2yz}+\frac{z}{x^2y^2}+\frac{1}{x^3yz}+\frac{2}{x^3y^2}+\frac{1}{x^4y^2z}$ && $633 \colon {}$ & $\left(\frac{x^2y^2z+xyz+1}{x^2yz},\frac{x^3y^2z}{x^2y^2z+xyz+1},\frac{x}{x^2y^2z+xyz+1}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \end{longtable}
\end{center}
