%I A000724 M3175 N1287
%S A000724 1,3,196,3406687200
%N A000724 Invertible Boolean functions of n variables.
%D A000724 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A000724 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A000724 M. A. Harrison, The number of classes of invertible Boolean functions, 
               J. ACM 10 (1963), 25-28.
%H A000724 <a href="Sindx_Bo.html#Boolean">Index entries for sequences related to 
               Boolean functions</a>
%Y A000724 Sequence in context: A159658 A093978 A101382 this_sequence A157565 A157598 
               A023310
%Y A000724 Adjacent sequences: A000721 A000722 A000723 this_sequence A000725 A000726 
               A000727
%K A000724 nonn
%O A000724 1,2
%A A000724 N. J. A. Sloane (njas(AT)research.att.com).