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A001532 Number of self-dual equivalence classes threshold functions of n or fewer variables.
(Formerly M0852 N0324)
+0
2
1, 1, 2, 3, 7, 21, 135, 2470, 175428 (list; graph; listen)
OFFSET

0,3

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

S. Muroga, Threshold Logic and Its Applications. Wiley, NY, 1971, p. 38, Table 2.3.2. - Row 23.

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

CROSSREFS

Adjacent sequences: A001529 A001530 A001531 this_sequence A001533 A001534 A001535

Sequence in context: A032223 A002863 A047693 this_sequence A109456 A155745 A067738

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 9 12:23 EST 2009. Contains 166233 sequences.


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