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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.

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: A075633 A124066 A093447 this_sequence A000372 A123930 A125601

Adjacent sequences: A002075 A002076 A002077 this_sequence A002079 A002080 A002081

KEYWORD

nonn

AUTHOR

njas

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Last modified September 7 23:08 EDT 2008. Contains 143486 sequences.


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