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%I M3948 N1627 #20 Apr 01 2017 00:23:05
%S 5,27,1204,85617952,47163951612740818544,
%T 1853476797422393518997156640106964554652232210,
%U 1431405317608062035603436602561550164804819376613495652537557566563513965206452741153347013992258358
%N Number of switching networks with GL(n,2) acting on the domain and GL(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. (Available on-line at http://deepblue.lib.umich.edu/handle/2027.42/5406/.)
%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 25 2012
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