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 A269977 #4 Mar 10 2016 21:02:34 %S A269977 1,2,1,1,1,3,1,1,3,2,1,1,2,2,1,3,1,3,2,1,2,1,2,3,1,1,2,1,3,2,2,2,1,1, %T A269977 1,2,2,2,2,1,2,1,2,1,2,3,2,1,2,1,1,1,1,1,1,1,1,2,2,1,1,1,2,1,2,1,1,2, %U A269977 3,1,2,3,3,1,1,3,1,2,2,1,2,3,1,2,1,1 %N A269977 Factorial-nested interval sequence of -1 + sqrt(3). %C A269977 See A269970 for a definition of factorial-nested interval sequence and guide to related sequences. %Y A269977 Cf. A000142, A269970. %K A269977 nonn,easy %O A269977 1,2 %A A269977 _Clark Kimberling_, Mar 08 2016