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%I A145211
%S A145211 1,4,14,54,197,792
%N A145211 Maximal number of distinct shuffles of the identity permutation on n 
               letters with another permutation on n letters
%C A145211 For n=4,5,6, the maximum number is achieved by the following permutations, 
               respectively: 3412, 34512, 456123.
%D A145211 C. Smith, dissertation, Harvard University, forthcoming.
%e A145211 For n=2, the distinct shuffles of 12 with 21 are: 1221, 1212, 2112, 2121.
%Y A145211 Sequence in context: A162482 A000651 A118896 this_sequence A060898 A045501 
               A162481
%Y A145211 Adjacent sequences: A145208 A145209 A145210 this_sequence A145212 A145213 
               A145214
%K A145211 nonn
%O A145211 1,2
%A A145211 Camillia Smith (cammie(AT)math.harvard.edu), Oct 04 2008

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