A000847 Number of n-input 2-output switching networks under action of GL(n,2) on the inputs and complementing group C(2,2) on the outputs.

4, 20, 264, 80104, 464655217384, 4220043418839499735652372200, 176673930781452287254786178869471177643231519559311590043612856

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn

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

• Index entries for sequences related to switching networks

Crossrefs

Cf. A000848.

Extensions

More terms from Vladeta Jovovic, Feb 26 2000