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 A063858 #14 Feb 22 2023 12:00:33 %S A063858 1,1,3,1,5,8,1,7,27,46,1,9,71,1063,790,1,11,156,44956,1434219,37829,1, %T A063858 13,325 %N A063858 Triangle T(n,k) (n >= 2, k = 0..n-2) giving number of abstract dissection types of configurations of n points in n-k dimensions. %H A063858 Lukas Finschi, <a href="https://finschi.com/math/om/">Homepage of Oriented Matroids</a> %H A063858 L. Finschi and K. Fukuda, <a href="http://www.cccg.ca/proceedings/2001/finschi-1053.ps.gz">Complete combinatorial generation of small point set configurations and hyperplane arrangements</a>, pp. 97-100 in Abstracts 13th Canadian Conference on Computational Geometry (CCCG '01), Waterloo, Aug. 13-15, 2001. %e A063858 Triangle begins %e A063858 1; %e A063858 1,3; %e A063858 1,5,8; %e A063858 1,7,27,46; %e A063858 ... %Y A063858 Diagonals give A063859, A063860, A063861, A246992, A246993. Row sums give A063862. %K A063858 nonn,tabl,nice,more %O A063858 2,3 %A A063858 _N. J. A. Sloane_, Aug 26 2001