A000812 Number of switching networks (see Harrison reference for precise definition). (Formerly M5334 N2321)

64, 2304, 2928640, 11745443774464, 660235081293571848291745792, 8718196854704187882046649324045198931057057476097605632

Offset

1,1

Comments

Total number of classes under permutation of n input variables and 3 output variables. [Sean A. Irvine, Jul 06 2011]

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: A181241 A053107 A330820 * A240363 A239432 A004388

Adjacent sequences: A000809 A000810 A000811 * A000813 A000814 A000815

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Sean A. Irvine, Jul 05 2011

Status

approved