%I M2765 N1112 #19 Apr 01 2017 00:32:33
%S 3,8,49,3963,7320535610,32969104250143930769244222,
%T 690132542115048296423766100299538236974685246850905568050026
%N Number of n-input 2-output switching networks under action of AG(n,2) and complementing group C(2,2) on inputs and outputs.
%C Next term has 133 digits. - _Sean A. Irvine_, Jan 20 2012
%D M. A. Harrison, On the number of classes of switching networks, J. Franklin Instit., 276 (1963), 313-327.
%D N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H <a href="/index/Sw#switching">Index entries for sequences related to switching networks</a>
%K nonn
%O 1,1
%A _N. J. A. Sloane_
%E More terms from _Sean A. Irvine_, Jan 19 2012