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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
| 1,4
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REFERENCES
| Hans-J. Bandelt and Jarmila Hedl\'{\i}kov\'a, Median algebras, Discrete Mathematics, 45 (1983), 1-30.
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FORMULA
| A001206(n)=Sum[Binomial[n, k]a[k], {k, n}]
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CROSSREFS
| Cf. A001206, A107765.
Sequence in context: A113096 A135078 A195243 * A065777 A193485 A141040
Adjacent sequences: A107763 A107764 A107765 * A107767 A107768 A107769
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KEYWORD
| hard,nonn
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AUTHOR
| Donald E Knuth, Jun 11 2005
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EXTENSIONS
| Two more terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 13 2005
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