A000889 - OEIS

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A000889

Number of switching networks with S(n) and C(2,2) acting on the domain and AG(2,2) acting on the range.
(Formerly M1819 N0722)

2, 7, 124, 494298, 200221917406630, 307691667840351694566029898844575, 7478717734511679718967611872518416516838871889762225738677912465064319 (list; graph; refs; listen; history; 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	`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: A101429 A206151 A070521 * A041727 A120379 A101799` `Adjacent sequences: A000886 A000887 A000888 * A000890 A000891 A000892`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Jan 26 2012`

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Last modified February 16 16:28 EST 2012. Contains 205938 sequences.