%I #14 Dec 21 2020 03:17:45
%S 1,1,1,2,4,9,20,47,107,249,573,1319,3010,6859,15534,35095,78964,
%T 177209,396434,884767,1969496,4374573,9694994,21443195,47333594,
%U 104291391,229373393,503609582,1103877079,2415752264,5278467730
%N Number of 6-ary rooted trees with n nodes and height at most 6.
%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.
%H <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a>
%K nonn,fini
%O 0,4
%A _N. J. A. Sloane_.