A000815 Number of switching networks (see Harrison reference for precise definition). (Formerly M5254 N2286)

36, 666, 384112, 735192450952, 20632358601785638477436416, 136221825854760195018034839832322234167109566010687488

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..6.

Index entries for sequences related to switching networks

Crossrefs

Sequence in context: A162150 A162388 A010988 * A271794 A182678 A239181

Adjacent sequences: A000812 A000813 A000814 * A000816 A000817 A000818

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Sean A. Irvine, Jul 05 2011

Status

approved