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 A269971 #4 Mar 10 2016 21:01:52 %S A269971 1,2,1,1,2,2,3,1,1,2,1,1,2,5,2,1,2,3,1,3,2,1,1,2,2,2,1,1,2,3,2,2,3,2, %T A269971 1,2,1,1,1,1,1,1,1,1,1,2,1,2,2,1,3,2,2,2,1,1,1,1,2,2,1,3,1,1,2,3,1,1, %U A269971 1,1,2,1,1,3,2,1,1,4,2,2,2,1,1,3,1,1 %N A269971 Factorial-nested interval sequence of e-2. %C A269971 See A269970 for a definition of factorial-nested interval sequence and guide to related sequences. %Y A269971 Cf. A000142, A269970. %K A269971 nonn,easy %O A269971 1,2 %A A269971 _Clark Kimberling_, Mar 08 2016