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Number of labeled trees with 3-colored nodes.
7

%I #11 Dec 19 2015 12:21:19

%S 1,3,9,81,1296,30375,944784,36756909,1719926784,94143178827,

%T 5904900000000,417703359617577,32905425960566784,2857282535902251951,

%U 271165225379757133824,27925772039747314453125

%N Number of labeled trees with 3-colored nodes.

%H <a href="/index/Tra#trees">Index entries for sequences related to trees</a>

%F A038061/n. E.g.f. B(3x) where B(x) is e.g.f. of A000272.

%Y Cf. A000272, A038055-A038061.

%K nonn

%O 0,2

%A _Christian G. Bower_, Jan 04 1999