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A038055
Number of n-node rooted trees with nodes of 2 colors.
+0
9
2, 4, 14, 52, 214, 916, 4116, 18996, 89894, 433196, 2119904, 10503612, 52594476, 265713532, 1352796790, 6933598208, 35747017596, 185260197772, 964585369012, 5043220350012, 26467146038744, 139375369621960
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Maintained by
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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.
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