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%I M3508 N1425 #19 Apr 01 2017 00:34:35
%S 4,15,276,5534533,1473914807822315239,
%T 28960574959925842749932484608400325311784104,
%U 11182854043812984653151849586832952714557996202582672732591909323787317314909793862964567968430394
%N Number of switching networks with AG(n,2) acting on the domain and GL(3,2) 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>
%K nonn
%O 1,1
%A _N. J. A. Sloane_
%E More terms from _Sean A. Irvine_, Jan 25 2012