A000847 - OEIS

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A000847

Number of n-input 2-output switching networks under action of GL(n,2) on the inputs and complementing group C(2,2) on the outputs.
(Formerly M3572 N1448)

4, 20, 264, 80104, 464655217384, 4220043418839499735652372200, 176673930781452287254786178869471177643231519559311590043612856 (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`
	CROSSREFS	`Cf. A000848.` `Sequence in context: A066917 A032081 A034235 * A188810 A120443 A053400` `Adjacent sequences: A000844 A000845 A000846 * A000848 A000849 A000850`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Feb 26 2000`

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Last modified February 15 13:16 EST 2012. Contains 205795 sequences.