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A159770
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Number of n-leaf binary trees that do not contain (()(()(((()())())()))) as a subtree.
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1
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1, 1, 2, 5, 14, 41, 124, 384, 1211, 3875, 12548, 41040, 135370, 449791, 1504057, 5057668, 17092030, 58018150, 197727023, 676290905, 2320721255, 7987481185, 27566740439, 95379299734, 330774138321, 1149589209136, 4003322875481
(list; graph; refs; listen; history; internal format)
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