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 A075938 #1 May 16 2003 03:00:00 %S A075938 127,1927,6553,10922,19252,98731,164529,295709,559292,1083662,2132519, %T A075938 4230034,125829127,427819033,713031722,1258291252,6467616811, %U A075938 10779361329,19377684509,36649828412,71017955342 %N A075938 Basis for code in A075937. %D A075938 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 A075938 Bob Jenkins, <a href="http://burtleburtle.net/bob/math/lexicode.html">Tables of Binary Lexicodes</a> %H A075938 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 A075938 a(n) = b(2^n), where b is A075937, the binary lexicode, d=7. %F A075938 b(n) = XOR(a(i)) for all i where the i-th bit is set in n. %Y A075938 Cf. A075928, A075929, A075930, A075937, A075939, A075941, A075932, A075944. %K A075938 nonn %O A075938 0,1 %A A075938 Bob Jenkins (bob_jenkins(AT)burtleburtle.net)