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%I #9 Mar 09 2015 22:39:16
%S 1,0,0,2,12,61,301,1460,7019,33628,160934,770109,3686706,17661288,
%T 84675601,406319271,1951428049,9380072046,45124798445,217252113080,
%U 1046731684143,5046754081095,24348794377704,117547968556766,567818803946292,2744396907325759
%N Number of (2n+1)-node rooted identity trees of height n.
%H Alois P. Heinz, <a href="/A245091/b245091.txt">Table of n, a(n) for n = 0..300</a>
%F a(n) = A227819(2n+1,n).
%F a(n) ~ c * d^n / sqrt(n), where d = 4.9159375028212... (same as for A245090), c = 0.076188269997... . - _Vaclav Kotesovec_, Jul 12 2014
%Y Cf. A227819.
%K nonn
%O 0,4
%A _Alois P. Heinz_, Jul 11 2014