array 1  = array([['A', 'A', 'B', 'B', 'B', 'C', 'C', 'C', 'C', 'D', 'D',
     'D', 'E'],['A', 'A', 'B', 'B', 'C', 'C', 'C', 'D', 'D', 'D', 'E', 'E', 'E'] There are 51 elements(lists) in total.

uniquecounts = []
for each in array1:
   answer= list(itt.combinations(data_set,13)).count(list(each))
uniquecounts.append(answer)