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 A104893 #14 May 05 2020 05:34:48 %S A104893 0,1,0,0,1,0,1,1,1,0,0,0,1,1,0,1,0,0,1,1,0,0,1,1,0,1,1,0,1,1,0,0,0,1, %T A104893 1,0,0,0,0,0,0,0,1,1,0,1,0,1,0,0,0,0,1,1,0,0,1,0,1,0,0,0,0,1,1,0,1,1, %U A104893 1,1,1,0,0,0,0,1,1,0,0,0,1,0,0,1,0,0,0,0,1,1,0,1,0,0,0,0,0,1,0,0,0,0,1,1,0 %N A104893 Binary array, related to A103122, read by downward antidiagonals. %H A104893 David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers [<a href="http://neilsloane.com/doc/slopey.pdf">pdf</a>, <a href="http://neilsloane.com/doc/slopey.ps">ps</a>]. %H A104893 David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL8/Sloane/sloane300.html">Sloping binary numbers: a new sequence related to the binary numbers</a>, J. Integer Seq. 8 (2005), no. 3, Article 05.3.6, 15 pp. %e A104893 The k-th row for k>=0: %e A104893 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, ... %e A104893 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, ... %e A104893 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, ... %e A104893 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, ... %e A104893 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, ... %e A104893 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, ... %e A104893 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, ... %e A104893 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, ... %e A104893 ... %e A104893 Column n is A103122(n) written in base 2 ( see Table 2 in reference). %Y A104893 Cf. A103122. %K A104893 nonn,tabl %O A104893 0,1 %A A104893 _N. J. A. Sloane_, _Philippe Deléham_, Apr 24 2005