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A002080 Number of self-dual functions of n variables.
(Formerly M1266 N0485)
0
1, 2, 4, 12, 81, 1684, 123565, 33207256, 34448225389 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

REFERENCES

S. Muroga, Threshold Logic and Its Applications. Wiley, NY, 1971, p. 38 and 214.

S. Muroga, T. Tsuboi and C. R. Baugh, Enumeration of threshold functions of eight variables, IEEE Trans. Computers, 19 (1970), 818-825.

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..9.

S. Muroga, Threshold Logic and Its Applications, Wiley, NY, 1971 [Annotated scans of a few pages]

S. Muroga, T. Tsuboi and C. R. Baugh, Enumeration of threshold functions of eight variables, IEEE Trans. Computers, 19 (1970), 818-825. [Annotated scanned copy]

Index entries for sequences related to Boolean functions

CROSSREFS

Sequence in context: A114903 A038054 A003180 * A001206 A144295 A119489

Adjacent sequences:  A002077 A002078 A002079 * A002081 A002082 A002083

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified January 16 01:15 EST 2019. Contains 319184 sequences. (Running on oeis4.)