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 A105228 #10 May 04 2020 09:33:04 %S A105228 1,4,7,6,5,16,11,10,9,12,15,14,29,24,19,18,17,20,23,22,21,32,27,26,25, %T A105228 28,31,62,45,40,35,34,33,36,39,38,37,48,43,42,41,44,47,46,61,56,51,50, %U A105228 49,52,55,54,53,64,59,58,57,60,127,94,77,72,67,66,65,68,71,70 %N A105228 a(n) = A102370(n) + 1. %C A105228 If the array of negative numbers is written in 2's-complement notation and read by diagonals one obtains the sequence -1, -4, -7, -6, ... %H A105228 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. %Y A105228 Cf. A102370, A105229. %K A105228 nonn,base %O A105228 1,2 %A A105228 _N. J. A. Sloane_, Apr 15 2005