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 A095047 #10 Aug 18 2021 21:46:04 %S A095047 1,3,4,9,10,11,12,13,14,16,19,23,25,27,29,30,33,34,35,36,37,39,40,41, %T A095047 42,44,47,48,49,52,53,56,57,61,62,64,69,75,76,79,81,83,85,86,87,89,90, %U A095047 92,99,100,101,102,105 %N A095047 An example of a (v,k,lambda)=(107,53,26) cyclic difference set. %C A095047 See A095029. This is an example of a difference set that produces a large number of different representations. %H A095047 Dan Gordon, <a href="http://web.archive.org/web/20101226230341/http://www.ccrwest.org/diffsets/ds_list.pdf">List of Cyclic Difference Sets</a>, (2003). %H A095047 Dan Gordon, <a href="https://dmgordon.org/diffset">Difference Sets</a>, searchable database. %Y A095047 Cf. A095025 (number of cyclic difference sets with n elements), A095029-A095046 (more examples of cyclic difference sets with k=5..20). %K A095047 fini,full,nonn %O A095047 1,2 %A A095047 _Hugo Pfoertner_, May 27 2004