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A000857 Number of n-input 3-output switching networks under the action of S(n) on the inputs and S(3) and complementing group C(2,3) on the outputs
(Formerly M3696 N1511)
0
4, 74, 63440, 244728561176, 13754897546985740953546112, 181629101139670580935062344094172140654053010592464896 (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).

F. Yano and H. Yoshida, Some set partition statistics in non-crossing partitions and generating functions, Discr. Math., 307 (2007), 3147-3160.

LINKS

Index entries for sequences related to switching networks

CROSSREFS

Sequence in context: A139112 A100865 A007157 * A046057 A072373 A006412

Adjacent sequences:  A000854 A000855 A000856 * A000858 A000859 A000860

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 14 11:36 EST 2012. Contains 205623 sequences.