A000725 Invertible Boolean functions of n variables.

1, 2, 154, 2270394624, 571030462095782973206774552784, 3824475917061034074298122508414160251634847335755905881951011420229530501911521280

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn

Comments

Equivalence classes of invertible maps from {0,1}^n to {0,1}^n, under action of permutation of variables on the domain and permutation and complementation of the range. [Sean A. Irvine, Mar 16 2011]

References

• M. A. Harrison, The number of classes of invertible Boolean functions, J. ACM 10 (1963), 25-28.
• 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

• M. A. Harrison, The number of classes of invertible Boolean functions, J. ACM 10 (1963), 25-28. [Annotated scan of page 27 only]
• Index entries for sequences related to Boolean functions

Extensions

More terms from Sean A. Irvine, Mar 15 2011

a(6) corrected by Sean A. Irvine, May 29 2013

a(5) corrected by Sean A. Irvine, Jun 03 2013