This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A094610 #6 May 09 2021 18:36:10 %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 6858551493579,50478955083341,373815860588360,2783730088637429,20835514668765200,156675846789962554,1183195305751233833 %N A094610 Number of unlabeled 4-gonal 2-trees with n 4-gons. %H A094610 Andrew Howroyd, <a href="/A094610/b094610.txt">Table of n, a(n) for n = 0..500</a> %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 Column k=4 of A340811. %Y A094610 Cf. A054581. %K A094610 nonn %O A094610 0,4 %A A094610 _Vladeta Jovovic_, Jun 06 2004 %E A094610 Terms a(21) and beyond from _Andrew Howroyd_, May 09 2021