A000842 Number of n-input 3-output switching networks under action of symmetric group S(n) on the inputs and complementing group C(3,2) on the outputs. (Formerly M4582 N1953)

8, 288, 366080, 1468180471808, 82529385161696481036468224, 1089774606838023485255831165505649866382132184512200704

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

Cf. A000612, A000841.

Sequence in context: A034977 A065141 A190840 * A202559 A232372 A264248

Adjacent sequences: A000839 A000840 A000841 * A000843 A000844 A000845

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Vladeta Jovovic, Feb 27 2000

Status

approved