%I A094610
%S A094610 1,1,1,3,8,32,141,749,4304,26492,169263,1115015,7507211,51466500,
%T A094610 358100288,2523472751,17978488711,129325796854,938234533024,
%U A094610 6858551493579,50478955083341
%N A094610 Number of unlabeled 4-gonal 2-trees with n 4-gons.
%H A094610 G. Labelle, C. Lamathe and P. Leroux, <a href="http://arXiv.org/abs/math.CO/
               0312424">Labeled and unlabeled enumeration of k-gonal 2-trees</a>
%Y A094610 Cf. A054581.
%Y A094610 Sequence in context: A151541 A022563 A103939 this_sequence A064316 A009438 
               A091831
%Y A094610 Adjacent sequences: A094607 A094608 A094609 this_sequence A094611 A094612 
               A094613
%K A094610 nonn
%O A094610 0,4
%A A094610 Vladeta Jovovic (vladeta(AT)eunet.rs), Jun 06 2004