%I #15 Jan 14 2021 06:15:54
%S 0,1,2,4,6,8,11,14,17,21,25
%N Values of ||G*(n)|| related to construction of graphs which contain all small trees.
%H Chung, F. R. K.; Graham, R. L. <a href="https://doi.org/10.1016/0095-8956(78)90072-2">On graphs which contain all small trees</a>. J. Combinatorial Theory Ser. B 24 (1978), no. 1, 14--23. MR0505812 (58 #21808a)
%Y This is an upper bound on A004401.
%Y Cf. A339573.
%K nonn,more
%O 0,3
%A _N. J. A. Sloane_, May 26 2012