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 A094652 #9 Feb 02 2021 19:47:12 %S A094652 1,1,1,5,26,245,2737,35291,483819,6937913,102666626,1558022255, %T A094652 24133790815,380320794122,6081804068869,98490990290897, %U A094652 1612634990857755,26660840123167203,444560998431678554,7469779489114328514,126375763235359105446,2151342943131421629636 %N A094652 Number of unlabeled octagonal 2-trees with n octagons. %H A094652 Andrew Howroyd, <a href="/A094652/b094652.txt">Table of n, a(n) for n = 0..200</a> %H A094652 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>, arXiv:math/0312424 [math.CO], Dec 23 2003. %Y A094652 Column k=8 of A340811. %Y A094652 Cf. A054581. %K A094652 nonn %O A094652 0,4 %A A094652 _Vladeta Jovovic_, Jun 06 2004 %E A094652 Terms a(20) and beyond from _Andrew Howroyd_, Feb 02 2021