%I A001183 M0390 N0148
%S A001183 0,2,2,18,66,374,1694,9822,51698
%N A001183 Number of nontrivial Baxter permutations of length 2n-1.
%D A001183 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A001183 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A001183 W. M. Boyce, Generation of a class of permutations associated with commuting 
               functions, Math. Algorithms, 2 (1967), 19-26.
%Y A001183 Cf. A001181, A001185, A046996.
%Y A001183 Sequence in context: A100304 A096190 A136434 this_sequence A141084 A093777 
               A103129
%Y A001183 Adjacent sequences: A001180 A001181 A001182 this_sequence A001184 A001185 
               A001186
%K A001183 nonn
%O A001183 1,2
%A A001183 N. J. A. Sloane (njas(AT)research.att.com).