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A000892 Number of switching networks with GL(n,2) acting on the domain and AG(2,2) acting on the range.
(Formerly M1815 N0719)
9
2, 7, 60, 13733, 77443340533, 703340569806668663530742581, 29445655130242047875797696478261941465296049517922025033117465 (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..7.

Index entries for sequences related to switching networks

M. A. Harrison, On the number of classes of (n,k) switching networks, University of Michigan (1962).

CROSSREFS

Sequence in context: A215209 A274600 A091687 * A211875 A065397 A255904

Adjacent sequences:  A000889 A000890 A000891 * A000893 A000894 A000895

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Sean A. Irvine, Jan 26 2012

STATUS

approved

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Last modified September 24 04:27 EDT 2017. Contains 292403 sequences.