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Search: id:A073346
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| A073346 |
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Table T(n,k) (listed antidiagonalwise in order T(0,0), T(1,0), T(0,1), T(2,0), T(1,1), ...) giving the number of rooted plane binary trees of size n and "contracted height" k. |
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+0 12
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| 1, 1, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 0, 0, 0, 0, 2, 4, 0, 0, 0, 0, 1, 0, 8, 8, 0, 0, 0, 0, 0, 0, 12, 16, 0, 0, 0, 0, 0, 0, 2, 12, 40, 16, 0, 0, 0, 0, 0, 0, 2, 12, 80, 48, 0, 0, 0, 0, 0, 0, 0, 0, 12, 136, 144, 32, 0, 0, 0, 0, 0, 0, 0, 2, 20, 224, 384, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16
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