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A200793
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The number of forests on n nodes of rooted labeled binary trees (each node has degree <=2).
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0
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1, 1, 3, 16, 121, 1191, 14461, 209098, 3510921, 67175461, 1443249271, 34412298636, 901898694313, 25775139581491, 797824620178041, 26592701386533766, 949705032131053201, 36181186751341438473, 1464760631695118359051, 62798619981256526628136
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