A000890 - OEIS

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A000890

Number of switching networks with S(n) and C(2,2) acting on the domain and AG(2,3) acting on the range.
(Formerly M1908 N0753)

2, 8, 502, 547849868, 15351457458188948591044, 101355525189553716762153010939347719113626111895054, 45444210218450590048352761382977278474163061892945988503535816179384800906003492121663432508203634748567436 (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.` `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	`Table of n, a(n) for n=1..7.` `Index entries for sequences related to switching networks` `M. A. Harrison, On the number of classes of (n,k) switching networks, University of Michigan (1962).`
	CROSSREFS	`Sequence in context: A009808 A035129 A003301 * A033542 A098870 A221065` `Adjacent sequences: A000887 A000888 A000889 * A000891 A000892 A000893`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane.`
	EXTENSIONS	`More terms from Sean A. Irvine, Jan 26 2012`
	STATUS	`approved`

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Last modified May 26 02:53 EDT 2013. Contains 225653 sequences.