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Number of rooted trees with n nodes with every leaf at height 7.
3

%I #15 Dec 19 2015 13:11:03

%S 1,1,2,3,6,9,17,28,48,81,140,236,405,686,1169,1984,3375,5723,9721,

%T 16478,27949,47354,80245,135869,230054,389304,658706,1114072,1883900,

%U 3184602,5382321,9094154,15362767,25946131,43811971,73964065

%N Number of rooted trees with n nodes with every leaf at height 7.

%H Alois P. Heinz, <a href="/A048812/b048812.txt">Table of n, a(n) for n = 8..1000</a>

%H N. J. A. Sloane, <a href="/transforms.txt">Transforms</a>

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

%F Euler transform of A048811 shifted right.

%Y Cf. A048808-A048816.

%Y Column k=7 of A244925.

%K nonn

%O 8,3

%A _Christian G. Bower_, Apr 15 1999