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A002078 N-equivalence classes of threshold functions of n or fewer variables.
(Formerly M0816 N0308)
+0
4
2, 3, 6, 20, 150, 3287, 244158, 66291591, 68863243522 (list; graph; listen)
OFFSET

0,1

COMMENT

It appears that this is the BinomialMean transform of A000609. (See A075271 for the definition of the transform.) - John W. Layman (layman(AT)math.vt.edu), Feb 21 2003

REFERENCES

S. Muroga, Threshold Logic and Its Applications. Wiley, NY, 1971, p. 38, Table 2.3.2. - Row 7.

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).

Michael Z. Spivey and Laura L. Steil, The k-Binomial Transforms and the Hankel Transform, Journal of Integer Sequences, Vol. 9 (2006), Article 06.1.1.

CROSSREFS

Cf. A000609, A075271.

Sequence in context: A141048 A124066 A093447 this_sequence A000372 A123930 A125601

Adjacent sequences: A002075 A002076 A002077 this_sequence A002079 A002080 A002081

KEYWORD

nonn

AUTHOR

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

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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