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 A075956 #1 May 16 2003 03:00:00 %S A075956 8191,1040447,15786439,53683801,89475754,426151179,3759235934, %T A075956 13422994867,22549990279,40403963324,206697639567,825177352150, %U A075956 1443261279781,6597741209193,11064929837983,52777249440092 %N A075956 Basis for code in A075955. %D A075956 J. H. Conway and N. J. A. Sloane, Lexicographic codes: error-correcting codes from game theory, IEEE Transactions on Information Theory, 32:337-348, 1986. %H A075956 Bob Jenkins, <a href="http://burtleburtle.net/bob/math/lexicode.html">Tables of Binary Lexicodes</a> %H A075956 Ari Trachtenberg, <a href="http://ipsit.bu.edu/phdthesis_html/phdthesis_html.html">Error-Correcting Codes on Graphs: Lexicodes, Trellises and Factor Graphs</a> %F A075956 a(n) = b(2^n), where b is A075955, the binary lexicode, d=13. %F A075956 b(n) = XOR(a(i)) for all i where the i-th bit is set in n. %Y A075956 Cf. A075928, A075929, A075930, A075955, A075957, A075959, A075950, A075962. %K A075956 nonn %O A075956 0,1 %A A075956 Bob Jenkins (bob_jenkins(AT)burtleburtle.net)