login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A000817 Number of switching networks under action of GL_n(Z_2).
(Formerly M5003 N2153)
0
16, 80, 1056, 320416, 1858620869536, 16880173675357998942609488800, 706695723125809149019144715477884710572926078237246360174451424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See Harrison reference for precise definition.

Next term has 136 digits. - Sean A. Irvine, Jan 19 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

Table of n, a(n) for n=1..7.

Index entries for sequences related to switching networks

CROSSREFS

Sequence in context: A165963 A221910 A069840 * A192510 A119508 A330480

Adjacent sequences:  A000814 A000815 A000816 * A000818 A000819 A000820

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

EXTENSIONS

More terms from Sean A. Irvine, Jan 18 2012

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 12 00:34 EDT 2022. Contains 356067 sequences. (Running on oeis4.)