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 A060440 #10 Apr 11 2017 09:10:52 %S A060440 1,4,1,8,4,1,24,7,4,1,64,16,4,4,1 %N A060440 Triangle T(n,k), 1 <= k <= n, giving maximal size of code of length n and covering radius k over alphabet of size 4. %D A060440 G. D. Cohen et al., Covering Codes, North-Holland, 1997, p. 174. %H A060440 Gerzson Kéri, <a href="http://old.sztaki.hu/~keri/codes/">Tables for Bounds on Covering Codes</a>. %H A060440 <a href="/index/Coa#covcod">Index entries for sequences related to covering codes</a> %e A060440 1; 4,1; 8,4,1; 24,7,4,1; ... %Y A060440 Cf. A060438, A060439. %K A060440 nonn,tabl,nice %O A060440 1,2 %A A060440 _N. J. A. Sloane_, Apr 07 2001 %E A060440 T(5,2)-T(5,5) from _Andrey Zabolotskiy_, Apr 11 2017 using Gerzson Kéri's tables.