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 A320180 #4 Oct 07 2018 08:35:23 %S A320180 1,1,3,9,32,126,564,2700,13802,74422,422812,2519962,15731562, %T A320180 102390662,692779852,4851392308,35068814616,261013287116, %U A320180 1997276928946,15689964298430,126416353430344,1043615269337354,8819704403143576,76229300376178238,673190822341507644 %N A320180 Number of solid standard Young tableaux of n cells and height <= 3. %H A320180 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 A320180 Wikipedia, <a href="https://en.wikipedia.org/wiki/Young_tableau">Young tableau</a> %Y A320180 Column k=3 of A215086. %K A320180 nonn %O A320180 0,3 %A A320180 _Alois P. Heinz_, Oct 07 2018