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 A320181 #3 Oct 07 2018 08:38:10 %S A320181 1,1,3,9,33,134,622,3106,16720,95140,572638,3621722,24046746, %T A320181 166799374,1205714772,9043761626,70185282194,561924753756, %U A320181 4632640872604,39262210040594,341678806496748,3050007040331626,27902744129363050,261376205797957108,2504865765980461010 %N A320181 Number of solid standard Young tableaux of n cells and height <= 4. %H A320181 S. B. Ekhad, D. Zeilberger, <a href="https://arxiv.org/abs/1202.6229">Computational and Theoretical Challenges on Counting Solid Standard Young Tableaux</a>, arXiv:1202.6229v1 [math.CO], 2012 %H A320181 Wikipedia, <a href="https://en.wikipedia.org/wiki/Young_tableau">Young tableau</a> %Y A320181 Column k=4 of A215086. %K A320181 nonn %O A320181 0,3 %A A320181 _Alois P. Heinz_, Oct 07 2018