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 A075950 #1 May 16 2003 03:00:00 %S A075950 2047,129055,932067,3299692,5548725,25323961,42250958,202390343, %T A075950 806394569,1409681880,2492481691,12894763567,21811487392,103089080516, %U A075950 176362268954,824702327536,1378954303613,2508261212719 %N A075950 Basis for code in A075949. %D A075950 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 A075950 Bob Jenkins, <a href="http://burtleburtle.net/bob/math/lexicode.html">Tables of Binary Lexicodes</a> %H A075950 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 A075950 a(n) = b(2^n), where b is A075949, the binary lexicode, d=11. %F A075950 b(n) = XOR(a(i)) for all i where the i-th bit is set in n. %Y A075950 Cf. A075928, A075929, A075930, A075949, A075951, A075953, A075944, A075956. %K A075950 nonn %O A075950 0,1 %A A075950 Bob Jenkins (bob_jenkins(AT)burtleburtle.net)