A000859 - OEIS

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A000859

Number of n-input 2-output switching networks under action of S(n) and complementing group C(2,2) on inputs and outputs
(Formerly M2963 N1198)

3, 13, 308, 1476218, 600665577652576, 923075003521054806676605033098240, 22436153203535039156902835617555247833069649686831685624592283895635968 (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	`Sequence in context: A132560 A128385 A100524 * A045748 A113526 A180654` `Adjacent sequences: A000856 A000857 A000858 * A000860 A000861 A000862`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Sean A. Irvine (sairvin(AT)xtra.co.nz), Aug 10 2011`

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Last modified February 15 18:15 EST 2012. Contains 205835 sequences.