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A107766
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Number of self-dual monotonic Boolean functions on n variables (where the result depends on all n variables).
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1
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OFFSET
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1,4
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LINKS
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Hans-J. Bandelt and Jarmila Hedlíková, Median algebras, Discrete Mathematics, 45 (1983), 1-30.
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FORMULA
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A001206(n) = Sum_{k=1..n} binomial(n,k)*a(k).
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CROSSREFS
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KEYWORD
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hard,nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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