%I M4577 N1951
%S 8,176,265728,2199038984192,309485009821617747608469504,
%T 12259964326927110866866776295192695943928870296113643520
%N Number of ninput 3output switching networks under action of complementing group on the inputs and outputs.
%C a(n)=2^(3*(2^n1)n)+2^(2^n+2^(n1))2^(2^n+2^(n1)n). [Sean A. Irvine, Jul 14 2011].
%D M. A. Harrison, On the number of classes of switching networks, J. Franklin Instit., 276 (1963), 313327.
%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>
%Y Cf. A000133, A000838.
%K easy,nonn
%O 1,1
%A _N. J. A. Sloane_.
%E More terms from _Vladeta Jovovic_, Feb 26 2000
