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 A006104 M3472 #20 Feb 02 2018 02:42:13
%S A006104 1,1,4,13,130,1210,33880,925771,75913222,6174066262,1506472167928,
%T A006104 366573514642546,267598665689058580,195168545232713290660,
%U A006104 427028776969176679964080,934054234760012359481199283,6129263888495201102915629695046
%N A006104 Gaussian binomial coefficient [ n,n/2 ] for q=3.
%D A006104 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 A006104 I. P. Goulden and D. M. Jackson, Combinatorial Enumeration. Wiley, NY, 1983, p. 99.
%D A006104 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%D A006104 M. Sved, Gaussians and binomials, Ars. Combinatoria, 17A (1984), 325-351.
%H A006104 T. D. Noe, <a href="/A006104/b006104.txt">Table of n, a(n) for n=0..50</a>
%H A006104 M. Sved, <a href="/A006095/a006095.pdf">Gaussians and binomials</a>, Ars. Combinatoria, 17A (1984), 325-351. (Annotated scanned copy)
%t A006104 Table[QBinomial[n,Floor[n/2],3],{n,0,20}] (* _Harvey P. Dale_, Nov 11 2011 *)
%K A006104 nonn
%O A006104 0,3
%A A006104 _N. J. A. Sloane_
%E A006104 More terms from _Harvey P. Dale_, Nov 11 2011