%I A000133 M1547 N0604
%S A000133 2,5,30,2288,67172352,144115192303714304,
%T A000133 1329227995784915891206435945914040320,
%U A000133 226156424291633194186662080095093570364871077725232774230036394136943198208
%N A000133 Number of Boolean functions of n variables.
%D A000133 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A000133 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A000133 M. A. Harrison, The number of equivalence classes of Boolean functions 
               under groups containing negation, IEEE Trans. Electron. Comput. 12 
               (1963), 559-561.
%D A000133 M. A. Harrison, Introduction to Switching and Automata Theory. McGraw 
               Hill, NY, 1965, p. 153.
%H A000133 <a href="Sindx_Bo.html#Boolean">Index entries for sequences related to 
               Boolean functions</a>
%F A000133 a(n)=(2^(2^n)+(2^n-1)*2^(2^(n-1)+1))/2^(n+1). [From Sean A. Irvine (sairvin(AT)xtra.co.nz), 
               Sep 27 2009]
%Y A000133 Sequence in context: A140786 A129951 A127298 this_sequence A059086 A107389 
               A077483
%Y A000133 Adjacent sequences: A000130 A000131 A000132 this_sequence A000134 A000135 
               A000136
%K A000133 nonn,easy,nice
%O A000133 1,1
%A A000133 N. J. A. Sloane (njas(AT)research.att.com).
%E A000133 More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Feb 23 2000