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A000721 Number of balanced Boolean functions of n variables.
(Formerly M1721 N0683)
1
1, 2, 6, 74, 169112, 39785643746726, 37126652766640082937217814348006, 558874591495497577231218517843968898077072559983411918227348931497772, 2543418403396552218692540675309257652967933363586412842890073506087719181661039614998143386115062688244926228780594103529690512174307113159065010 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

REFERENCES

B. Elspas, Self-complementary symmetry types of Boolean functions, IEEE Trans. Electron. Computers, 9 (1960), 264-266.

E. M. Palmer and R. W. Robinson, Enumeration of self-dual configurations, Pacific J. Math., 110 (1984), 203-221.

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

H. Jamke, Table of n, a(n) for n=1..10

E. M. Palmer and R. W. Robinson, Enumeration of self-dual configurations, Pacific J. Math., 110 (1984), 203-221. [From Herman Jamke (hermanjamke(AT)fastmail.fm), Aug 21 2010]

D. Zeilberger, First 7 terms of the sequence of weight-enumerators enumerating equivalence classes of Boolean functions under permutation of variable and negation . [From Herman Jamke (hermanjamke(AT)fastmail.fm), Aug 21 2010]

Index entries for sequences related to Boolean functions

CROSSREFS

Sequence in context: A061296 A019993 A065410 * A136306 A076146 A114552

Adjacent sequences:  A000718 A000719 A000720 * A000722 A000723 A000724

KEYWORD

nonn,nice,easy

AUTHOR

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

EXTENSIONS

More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), Aug 21 2010, Sep 05 2010

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Last modified February 15 09:00 EST 2012. Contains 205746 sequences.