%I M4572 N1948 #18 Feb 01 2022 01:28:25
%S 8,120,16880,1791651440,990442962518469863888,
%T 38923012745870263852909632697729215009690731472
%N Number of n-input 3-output switching networks under action of GL(n,2) on the inputs and complementing group C(3,2) on the outputs.
%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>
%Y Cf. A000847.
%K nonn
%O 1,1
%A _N. J. A. Sloane_
%E More terms from _Vladeta Jovovic_, Feb 26 2000