A000877 - OEIS

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A000877

Number of switching networks with GL(n,2) acting on the domain and GL(2,2) acting on the range.
(Formerly M3910 N1605)

5, 20, 206, 54155, 309771751363, 2813362279226503905263636259, 117782620520968191503190785913014275478335890027037842956986579 (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	`Table of n, a(n) for n=1..7.` `Index entries for sequences related to switching networks`
	CROSSREFS	`Sequence in context: A197741 A189317 A203902 * A203113 A077817 A032324` `Adjacent sequences: A000874 A000875 A000876 * A000878 A000879 A000880`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane`
	EXTENSIONS	`More terms from Sean A. Irvine, Jan 25 2012`
	STATUS	`approved`

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Last modified March 21 23:08 EDT 2023. Contains 361412 sequences. (Running on oeis4.)