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A051486
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Triangle T(n,k) = number of symmetric Boolean functions of n variables and rank from 0 to 2^n.
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1
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1, 1, 1, 2, 1, 1, 2, 2, 2, 1, 1, 2, 1, 2, 4, 2, 1, 2, 1, 1, 2, 1, 0, 2, 4, 3, 2, 2, 2, 3, 4, 2, 0, 1, 2, 1, 1, 2, 1, 0, 0, 2, 4, 2, 0, 0, 3, 6, 3, 0, 0, 4, 8, 4, 0, 0, 3, 6, 3, 0, 0, 2, 4, 2, 0, 0, 1, 2, 1, 1, 2, 1, 0, 0, 0, 2, 4, 2, 0, 0, 0, 1, 2, 1, 2, 4, 2, 0, 0, 1, 6, 9, 4, 0, 0, 2, 6, 6, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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LINKS
| Index entries for sequences related to Boolean functions
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EXAMPLE
| [1, 1], [1, 2, 1], [1, 2, 2, 2, 1], [1, 2, 1, 2, 4, 2, 1, 2, 1], ...
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CROSSREFS
| Row sums give A011782.
Sequence in context: A029256 A109073 A026465 * A081355 A060778 A096492
Adjacent sequences: A051483 A051484 A051485 * A051487 A051488 A051489
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KEYWORD
| nonn,tabf,nice
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AUTHOR
| Vladeta Jovovic (vladeta(AT)eunet.rs)
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