I have created a contingency table in pandas using pd.crosstab and it looks like the following:

colindex    0   1
rowindex        
0   28  2
1   8   1

The resulting contingency table has a column index Index([0, 1], dtype='Int64', name='colindex') and a row index Index([0, 1], dtype='Int64', name='rowindex'). How can I index the count from a single cell of the contingency table? I can’t seem to figure out how pandas multi-indexing is supposed to work.