A000814 Number of switching networks (see Harrison reference for precise definition). (Formerly M4714 N2015)

10, 55, 1996, 11756666, 4805323147589984, 7384600028168436080716029918923776, 179489225628280313255222684940441967551973345417569571214806075240914944

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: A164951 A244303 A261848 * A378507 A202071 A281207

Adjacent sequences: A000811 A000812 A000813 * A000815 A000816 A000817

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Sean A. Irvine, Jul 05 2011

Status

approved