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A000881 Number of switching networks with AG(n,2) acting on the domain and GL(3,2) acting on the range.
(Formerly M3508 N1425)
0
4, 15, 276, 5534533, 1473914807822315239, 28960574959925842749932484608400325311784104, 11182854043812984653151849586832952714557996202582672732591909323787317314909793862964567968430394 (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

CROSSREFS

Sequence in context: A090115 A051999 A048731 * A109923 A006524 A299683

Adjacent sequences:  A000878 A000879 A000880 * A000882 A000883 A000884

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Sean A. Irvine, Jan 25 2012

STATUS

approved

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Last modified May 26 09:56 EDT 2019. Contains 323579 sequences. (Running on oeis4.)