The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #15 Jul 08 2025 21:50:29
%S 1,1,1,2,4,9,20,48,113,275,667,1627,3951,9597,23215,56063,134982,
%T 324340,777492,1860365,4442905,10593324,25217480,59944219,142295011,
%U 337344737,798769090,1889131816,4462891151,10531873564,24828302752
%N Number of 6-ary rooted trees with n nodes and height at most 7.
%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_