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A000860 Number of n-input 3-output switching networks under action of S(n) and complementing group C(2,3) on inputs and outputs.
(Formerly M3656 N1488)
0
4, 34, 8900, 15320103918, 429840804866758538021686, 2837954705307504063799234409931200916180905873402528 (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.

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..6.

Index entries for sequences related to switching networks

CROSSREFS

Sequence in context: A162079 A113231 A055621 * A222397 A334257 A193994

Adjacent sequences:  A000857 A000858 A000859 * A000861 A000862 A000863

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Sean A. Irvine, Aug 10 2011

STATUS

approved

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Last modified August 1 00:13 EDT 2021. Contains 346377 sequences. (Running on oeis4.)