\begin{center}
\footnotesize
\setlength{\mylength}{\baselineskip}
\begin{longtable}{rp{0ex}p{9cm}p{0ex}RL}
\caption{Laurent polynomials and selected mutations for bucket 48.}\\

\toprule \multicolumn{1}{c}{{Node}}&& \multicolumn{1}{c}{{Laurent polynomial}} && \multicolumn{2}{c}{{Mutations from Figure~\ref{fig:48a}}} \\ \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:48a}}} \\ \midrule \endhead

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

\bottomrule \endlastfoot

62 && $x+y+z+\frac{1}{y}+\frac{z}{x}+\frac{2}{x}+\frac{1}{xz}$ && $85 \colon {}$ & $\left(\frac{xy+1}{y},\frac{1}{z},xy\right)$ \spacer \\* 
 &&  && $315 \colon {}$ & $\left(\frac{xyz+(y+1)^2}{xy},\frac{xyz+(y+1)^2}{x^2yz},y\right)$ \spacer \\* 
 &&  && $319 \colon {}$ & $\left(x,\frac{xy}{xyz+x+yz},\frac{xy^2z}{xyz+x+yz}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
85 && $xy+x+y+z+\frac{1}{z}+\frac{1}{y}+\frac{1}{x}$ && $62 \colon {}$ & $\left(\frac{xz}{z+1},\frac{z+1}{x},\frac{1}{y}\right)$ \spacer \\* \rowcolor[gray]{0.95}
 &&  && $191 \colon {}$ & $\left(\frac{xz+1}{x},y,\frac{xz+1}{x^2z}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 191 && $x+yz+y+z+\frac{1}{y}+\frac{y}{x}+\frac{2}{x}+\frac{1}{x^2z}$ && $85 \colon {}$ & $\left(\frac{x+z}{xz},y,\frac{x^2}{x+z}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
315 && $x+y+z+\frac{y}{x}+\frac{3}{x}+\frac{1}{xy}+\frac{y}{x^2z}+\frac{2}{x^2z}+\frac{1}{x^2yz}$ && $62 \colon {}$ & $\left(\frac{xz+y(z+1)^2}{xyz},z,\frac{x^2z}{xz+y(z+1)^2}\right)$ \spacer \\* \rowcolor[gray]{0.95}
 &&  && $377 \colon {}$ & $\left(x,y,\frac{z(y+1)}{y}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 319 && $x+y+z+\frac{1}{y}+\frac{z}{x}+\frac{2}{x}+\frac{1}{xy}+\frac{1}{xy^2z}+\frac{1}{x^2y}$ && $62 \colon {}$ & $\left(x,\frac{xy+xz+z}{x},\frac{xz}{y(xy+xz+z)}\right)$ \spacer \\* 
 &&  && $637 \colon {}$ & $\left(\frac{xy+1}{x},\frac{x^2y}{xy+1},\frac{z(xy+1)}{xy}\right)$ \spacer \\* 
 &&  && $849 \colon {}$ & $\left(\frac{(xy+1)^2}{x^2y},\frac{x^3y^2}{(xy+1)^2},\frac{z(xy+1)^2}{x^2y^2}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
377 && $x+y+z+\frac{z}{y}+\frac{y}{x}+\frac{3}{x}+\frac{1}{xy}+\frac{y}{x^2z}+\frac{1}{x^2z}$ && $315 \colon {}$ & $\left(x,y,\frac{yz}{y+1}\right)$ \spacer \\* \rowcolor[gray]{0.95}
 &&  && $634 \colon {}$ & $\left(x,\frac{xz}{y(x^2z+xz+1)},\frac{1}{xy(x^2z+xz+1)}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 634 && $xyz+x+yz+y+z+\frac{2y}{x}+\frac{3}{x}+\frac{1}{xy}+\frac{y}{x^2z}+\frac{1}{x^2z}$ && $377 \colon {}$ & $\left(x,\frac{1}{xy+xz+y},\frac{y}{x^2z}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \rowcolor[gray]{0.95}
637 && $x+y+z+\frac{z}{y}+\frac{1}{y}+\frac{2}{x}+\frac{z}{xy}+\frac{1}{xy}+\frac{1}{x^2y}+\frac{1}{x^2yz}$ && $319 \colon {}$ & $\left(\frac{xy+1}{x},\frac{x^2y}{xy+1},\frac{xyz}{xy+1}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 849 && $x+y+z+\frac{z}{y}+\frac{3}{x}+\frac{2z}{xy}+\frac{1}{xy}+\frac{3}{x^2y}+\frac{1}{x^2yz}+\frac{z}{x^2y^2}+\frac{1}{x^3y^2}$ && $319 \colon {}$ & $\left(\frac{(xy+1)^2}{x^2y},\frac{x^3y^2}{(xy+1)^2},\frac{x^2y^2z}{(xy+1)^2}\right)$ \bottomspacer \\ \addlinespace[1.1ex]
 \end{longtable}
\end{center}
