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 A273584 #9 Jul 19 2017 10:43:30 %S A273584 1,8,58,406,2918,20718,149826,1101760,8315184,64408712,512934920, %T A273584 4192369318,35116467578,300911466640,2635363943658,23572245742164, %U A273584 215262453066404,2006391770994272,19083039726219474,185146905421778870,1831674943638953366,18467803852380612492 %N A273584 Number of solid standard Young tableaux of n cells and height four. %H A273584 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:1202.6229 [math.CO], 2012 %H A273584 Wikipedia, <a href="https://en.wikipedia.org/wiki/Young_tableau">Young tableau</a> %Y A273584 Column k=4 of A214753. %K A273584 nonn %O A273584 4,2 %A A273584 _Alois P. Heinz_, May 25 2016