%I M1134 #18 Oct 21 2023 18:32:11
%S 0,0,0,0,1,1,1,2,4,8,16,34,72,158,348,784,1777,4080,9425,21965,51456,
%T 121300,287215,683268,1631532,3910235,9401000,22670058,54813780,
%U 132867903
%N Number of trees by stability index.
%D D. D. Grant, The stability index of graphs, pp. 29-52 of Combinatorial Mathematics (Proceedings 2nd Australian Conf.), Lect. Notes Math. 403, 1974.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H D. D. Grant, <a href="http://dx.doi.org/10.1007/BFb0057373">The stability index of graphs</a>, pp. 29-52 of Combinatorial Mathematics (Proceedings 2nd Australian Conf.), Lect. Notes Math. 403, 1974. Gives first 45 terms.
%H <a href="/index/Tra#trees">Index entries for sequences related to trees</a>
%K nonn,more
%O 1,8
%A _N. J. A. Sloane_