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A000874 Number of switching networks with S(n) and C(2,2) acting on the domain and GL(2,2) acting on the range.
(Formerly M3533 N1433)
0

%I M3533 N1433

%S 4,16,392,1966074,800887365826790,1230766671361406290474145896188319,

%T 29914870938046718875870447490073662976109190218710989290080175747776895

%N Number of switching networks with S(n) and C(2,2) 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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Last modified July 31 02:33 EDT 2021. Contains 346367 sequences. (Running on oeis4.)