Search: id:A151651
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%I A151651
%S A151651 0,225,15606,554931,16689816,477537957
%N A151651 Number of permutations of 6 indistinguishable copies of 1..n with exactly 
               2 adjacent element pairs in decreasing order.
%Y A151651 Sequence in context: A167042 A164763 A164752 this_sequence A051364 A061051 
               A036428
%Y A151651 Adjacent sequences: A151648 A151649 A151650 this_sequence A151652 A151653 
               A151654
%K A151651 nonn
%O A151651 1,2
%A A151651 Ron Hardin (rhhardin(AT)att.net) May 29 2009

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