1028 THE BELL SYSTEM TECHNICAL JOURNAL, JULY 1957 



equalities are listed in the third column and the probabilities that they 

 are satisfied are hsted as prob^^ . The probability of no coincidences is 



J2 Qk prob^ proby 

 where the simi is over all nine subcases. The sum is 



exp (-XLM) \ 1 + \LM + ^ [L'il/' - b\2L - 8)mi - 5)] 



4- ?^ (L - 8)\M - 8y-{2LM + L5 + M8 - 45') 



If L = M = 26, this reduces to 

 exp ( — 45'X) 



1 + 45'X + I 8V + 1^ 8\' + ij- 6^' 

 2 2/ 8o4 



J 



