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A000832 Number of switching networks (see Harrison reference for precise definition).
(Formerly M4706 N2011)
0
10, 46, 556, 160948, 929312039044, 8440086837679170219118159556, 353347861562904574509572357738975845669311200577543225891351084 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Next term has 136 digits. - Sean A. Irvine, Jan 20 2012
Number of equivalence classes with GL_n(Z_2) operating on the domain and symmetric group of 2 variables operating on the range. - Sean A. Irvine, Jan 20 2012
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
CROSSREFS
Sequence in context: A138041 A351901 A219597 * A242462 A253477 A143895
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Sean A. Irvine, Jan 19 2012
STATUS
approved

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)