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 A060438 #15 Apr 11 2017 09:10:43 %S A060438 1,2,1,2,2,1,4,2,2,1,7,2,2,2,1,12,4,2,2,2,1,16,7,2,2,2,2,1,32,12,4,2, %T A060438 2,2,2,1,62,16,7,2,2,2,2,2,1 %N A060438 Triangle T(n,k), 1 <= k <= n, giving maximal size of binary code of length n and covering radius k. %D A060438 G. D. Cohen et al., Covering Codes, North-Holland, 1997, p. 166. %H A060438 W. Haas, <a href="http://dx.doi.org/10.1016/S0012-365X(00)00461-1">Binary and ternary codes of covering radius one: some new lower bounds</a>, Discrete Math., 245 (2002), 161-178. %H A060438 Gerzson Kéri, <a href="http://old.sztaki.hu/~keri/codes/">Tables for Bounds on Covering Codes</a>. %H A060438 <a href="/index/Coa#covcod">Index entries for sequences related to covering codes</a> %e A060438 Triangle starts: %e A060438 1; %e A060438 2,1; %e A060438 2,2,1; %e A060438 4,2,2,1; %e A060438 7,2,2,2,1; %e A060438 ... %Y A060438 Columns give A000983, A029866. Cf. A060439, A060440. %K A060438 nonn,tabl,nice,more %O A060438 1,2 %A A060438 _N. J. A. Sloane_, Apr 07 2001 %E A060438 Row 9 from _Andrey Zabolotskiy_, Apr 11 2017 using Gerzson Kéri's tables.