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A000220 Number of asymmetric trees with n nodes (also called identity trees).
(Formerly M2583 N1022)
+0
8
1, 0, 0, 0, 0, 0, 1, 1, 3, 6, 15, 29, 67, 139, 310, 667, 1480, 3244, 7241, 16104, 36192, 81435, 184452, 418870, 955860, 2187664, 5025990, 11580130, 26765230, 62027433, 144133676, 335731381, 783859852, 1834104934, 4300433063, 10102854473 (list; graph; listen)
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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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