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A001529 NPN-equivalence classes of threshold functions of n or fewer variables.
(Formerly M0809 N0306)
2
1, 2, 3, 6, 15, 63, 567, 14755, 1366318 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

REFERENCES

D. E. Knuth, The Art of Computer Programming, Vol. 4A, Section 7.1.1, p. 79.

S. Muroga, Threshold Logic and Its Applications. Wiley, NY, 1971, p. 38, Table 2.3.2. - Row 19.

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).

CROSSREFS

Cf. A002078, A002079, A001530.

Sequence in context: A060796 A061059 A059842 * A069354 A116632 A007364

Adjacent sequences:  A001526 A001527 A001528 * A001530 A001531 A001532

KEYWORD

nonn,nice,more

AUTHOR

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

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.