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A001531 Number of self-dual Boolean functions of n variables.
(Formerly M2706 N1085)
+0
7
1, 1, 3, 7, 83, 109950, 28613442061634, 32966964611113760521683249750048, 623226477875973310927522916529663444655632673539934117923988862064800 (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 21.

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

I. Toda, On the number of types of self-dual logical functions, IEEE Trans. Electron. Comput., 11 (1962), 282-284.

LINKS

Index entries for sequences related to Boolean functions

CROSSREFS

Sequence in context: A116294 A077793 A045974 this_sequence A064118 A082715 A041705

Adjacent sequences: A001528 A001529 A001530 this_sequence A001532 A001533 A001534

KEYWORD

nonn,nice

AUTHOR

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

EXTENSIONS

n=6 term corrected to value in Palmer-Robinson reference. Three new terms added by Chris Stretch (ct.stretch(AT)ulst.ac.uk) 7/98.

Offset corrected. - Max Alekseyev (maxale(AT)gmail.com), Nov 21 2008

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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