%I #11 Dec 23 2020 04:36:12
%S 1,1,1,2,4,9,20,48,114,283,709,1806,4626,11940,30880,80055,207586,
%T 538330,1395080,3612756,9346541,24157618,62377353,160914843,414737061,
%U 1068032468,2748211066,7066320945,18156540077,46621728265,119639668421
%N Number of 6-ary rooted trees with n nodes and height at most 9.
%H E. M. Rains and N. J. A. Sloane, <a href="https://cs.uwaterloo.ca/journals/JIS/cayley.html">On Cayley's Enumeration of Alkanes (or 4-Valent Trees)</a>, J. Integer Sequences, Vol. 2 (1999), Article 99.1.1.
%K nonn,fini
%O 0,4
%A _N. J. A. Sloane_.