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 A015200 #15 May 14 2019 09:38:42
%S A015200 1,2,15,316,26537,6605334,6616438915,19736647911152,
%T A015200 237118435525391709,8486871559326397146058,
%U A015200 1223496018226895154470801975,525487164444668938421129856286884,909068834019126312744002601418684280593
%N A015200 Sum of Gaussian binomial coefficients for q=12.
%D A015200 J. Goldman and G.-C. Rota, The number of subspaces of a vector space, pp. 75-83 of W. T. Tutte, editor, Recent Progress in Combinatorics. Academic Press, NY, 1969.
%D A015200 I. P. Goulden and D. M. Jackson, Combinatorial Enumeration. Wiley, NY, 1983, p. 99.
%D A015200 M. Sved, Gaussians and binomials, Ars. Combinatoria, 17A (1984), 325-351.
%H A015200 Vincenzo Librandi, <a href="/A015200/b015200.txt">Table of n, a(n) for n = 0..60</a>
%H A015200 Kent E. Morrison, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL9/Morrison/morrison37.html">Integer Sequences and Matrices Over Finite Fields</a>, Journal of Integer Sequences, Vol. 9 (2006), Article 06.2.1.
%t A015200 Total/@Table[QBinomial[n, m, 12], {n, 0, 20}, {m, 0, n}] (* _Vincenzo Librandi_, Nov 02 2012 *)
%Y A015200 Row sums of triangle A022176.
%K A015200 nonn
%O A015200 0,2
%A A015200 _N. J. A. Sloane_, _Olivier Gérard_