A000862 Number of n-input 2-output switching networks under action of AG(n,2) and complementing group C(2,2) on inputs and outputs. (Formerly M2765 N1112)

3, 8, 49, 3963, 7320535610, 32969104250143930769244222, 690132542115048296423766100299538236974685246850905568050026

Offset

1,1

Comments

Next term has 133 digits. - Sean A. Irvine, Jan 20 2012

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: A019015 A305217 A316797 * A306042 A194364 A338439

Adjacent sequences: A000859 A000860 A000861 * A000863 A000864 A000865

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Sean A. Irvine, Jan 19 2012

Status

approved