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%I #9 Dec 19 2015 12:44:31
%S 1,4,17,83,432,2416,14093,85188,528234,3343420,21508182,140225532,
%T 924444270,6152191399,41275242100,278865583963,1895686831203,
%U 12956648332412,88984197144487,613773294727307,4250024962493357
%N M-type rooted trees on n nodes.
%D F. Bergeron, G. Labelle and P. Leroux, Combinatorial Species and Tree-Like Structures, Cambridge, 1998, p. 210 (3.2.68)
%H <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a>
%H N. J. A. Sloane, <a href="/transforms.txt">Transforms</a>
%F Satisfies 2*a(n) = PSum(SHIFT_RIGHT(a) + EULER(a)) - c0. c0(0)=1. c0(k)=0 if k != 0.
%Y Cf. A006959.
%K nonn,eigen
%O 1,2
%A _Christian G. Bower_, Dec 15 1999