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%I A055291 #12 Mar 07 2022 10:22:22
%S A055291 1,2,4,8,14,23,36,54,78,110,150,201,264,341,433,544,674,827,1004,1209,
%T A055291 1443,1711,2013,2355,2738,3167,3643,4173,4757,5402,6109,6885,7731,
%U A055291 8655,9657,10746,11923,13196,14566,16043,17627,19328,21147,23094
%N A055291 Number of trees with n nodes and 4 leaves.
%H A055291 Georg Fischer, <a href="/A055291/b055291.txt">Table of n, a(n) for n = 5..250</a>
%H A055291 <a href="/index/Tra#trees">Index entries for sequences related to trees</a>
%F A055291 G.f.: x^5(x^5+x^3+1)/[(1-x^3)(1+x^2)(1-x^2)^2(1-x)^2].
%Y A055291 Column 4 of A055290.
%K A055291 nonn
%O A055291 5,2
%A A055291 _Christian G. Bower_, May 09 2000

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