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Number of labeled trees with 2-colored leaves.
2

%I #10 Dec 19 2015 09:55:27

%S 1,2,4,12,80,800,10752,181888,3714048,88915968,2442936320,75776712704,

%T 2619618852864,99879826948096,4163954627051520,188441538173337600,

%U 9200521811924615168,482067547423055544320,26980938272912248406016

%N Number of labeled trees with 2-colored leaves.

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

%F (A038049 + A038053)/n.

%Y Cf. A036251.

%K nonn

%O 0,2

%A _Christian G. Bower_, Jan 04 1999