A000845 - OEIS

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A000845

Number of switching networks (see Harrison reference for precise definition).
(Formerly M4570 N1947)

8, 106, 49008, 91901007752, 2579044825238020792325632, 17027728231845024377254356563216673341241082335920128, 7634627316699699128123263912340182782717075954250211317249456247129155629314608610294934410743206996562935808 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Number of equivalence classes with permutation and complementation of n variables on the domain and complementation of 3 variables on the range. [Sean A. Irvine, Aug 07 2011]`
	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`
	CROSSREFS	`Sequence in context: A099695 A236953 A345474 * A199658 A027013 A365818` `Adjacent sequences: A000842 A000843 A000844 * A000846 A000847 A000848`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane`
	EXTENSIONS	`More terms from Sean A. Irvine, Aug 07 2011`
	STATUS	`approved`

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Last modified August 30 07:09 EDT 2024. Contains 375532 sequences. (Running on oeis4.)