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Number of trees with n unlabeled nodes T(n) raised to power T(n).
0

%I #4 May 18 2013 14:33:39

%S 1,1,1,4,27,46656,285311670611,20880467999847912034355032910567,

%T 3877924263464448622666648186154330754898344901344205917642325627886496385062863

%N Number of trees with n unlabeled nodes T(n) raised to power T(n).

%Y Number of trees with n unlabeled nodes: A000055.

%Y Cf. A008973, A008974, A051674.

%K nonn

%O 1,4

%A _Omar E. Pol_, Aug 24 2007