%I M5334 N2321 #23 Feb 01 2022 01:18:35
%S 64,2304,2928640,11745443774464,660235081293571848291745792,
%T 8718196854704187882046649324045198931057057476097605632
%N Number of switching networks (see Harrison reference for precise definition).
%C Total number of classes under permutation of n input variables and 3 output variables. [Sean A. Irvine, Jul 06 2011]
%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_, Jul 05 2011