%I #14 Dec 20 2020 17:11:01
%S 1,1,1,2,4,9,19,45,106,259,634,1571,3886,9636,23819,58805,144762,
%T 355643,871563,2131756,5203504,12679584,30844884,74921740,181721534,
%U 440177403,1064871279,2573043334,6210105218,14971861206,36057450646
%N Number of 4-ary rooted trees with n nodes and height at most 8.
%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_.