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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
4, 16, 392, 1966074, 800887365826790, 1230766671361406290474145896188319, 29914870938046718875870447490073662976109190218710989290080175747776895 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
REFERENCES
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/.)
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
CROSSREFS
Sequence in context: A202681 A067211 A156337 * A061580 A037976 A013138
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Sean A. Irvine, Jan 25 2012
STATUS
approved

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Last modified May 26 11:21 EDT 2024. Contains 372824 sequences. (Running on oeis4.)