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A030982
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Noncrossing nonplanted bushes with n nodes, i.e. rooted noncrossing trees with n nodes and no nodes of degree 1.
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0
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0, 1, 1, 7, 18, 80, 284, 1169, 4628, 19137, 79165, 333058, 1410608, 6029816, 25941384, 112315945, 488862888, 2138161043, 9391903131, 41414729419, 183264846010, 813564012660, 3622193670040, 16170171489820
(list; graph; refs; listen; history; internal format)
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