%I M1819 N0722 #22 Apr 01 2017 00:19:44
%S 2,7,124,494298,200221917406630,307691667840351694566029898844575,
%T 7478717734511679718967611872518416516838871889762225738677912465064319
%N Number of switching networks with S(n) and C(2,2) acting on the domain and AG(2,2) acting on the range.
%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>
%H M. A. Harrison, <a href="http://hdl.handle.net/2027.42/5406"> On the number of classes of (n,k) switching networks</a>, University of Michigan (1962).
%K nonn
%O 1,1
%A _N. J. A. Sloane_
%E More terms from _Sean A. Irvine_, Jan 26 2012