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Number of N(3)-good labeled Schroeder trees with 3n+1 leaves.
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%I #11 Nov 20 2017 03:34:30

%S 1,1,34,5446,2405116,2261938588,3887833883752

%N Number of N(3)-good labeled Schroeder trees with 3n+1 leaves.

%H John Engbers, David Galvin, Clifford Smyth, <a href="https://arxiv.org/abs/1610.05803">Restricted Stirling and Lah numbers and their inverses</a>, arXiv:1610.05803 [math.CO], 2016.

%K nonn,more

%O 0,3

%A _N. J. A. Sloane_, Sep 22 2017