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 A104691 #11 Feb 27 2015 23:25:56 %S A104691 2,3,7,1,1,4,8,1,2,5,8,9,1,2,8,6,2,5,8,3,4,5,5,8,9,9,0,7,4,9,5,3,2,2, %T A104691 3,3,5,8,3,4,6,6,0,2,2,6,8,4,7,3,4,3,7,8,1,3,3,2,5,7,2,9,6,5,6,0,2,2, %U A104691 4,8,9,8,7,4,7,1,5,9,7,7,2,1,4,6,7,9,0,3,9,9,3,9,6,3,9,7,9,5,9,1,5,0,9,5,5 %N A104691 Decimal expansions of e and Pi interlaced. %C A104691 Within 2.5 per cent of e^Pi (A039661: 23.14069...) or 5.5 per cent of Pi^e (A059850: 22.45915...). - _Robert G. Wilson v_, Jan 04 2013 %t A104691 Riffle[RealDigits[E, 10, 53][[1]], RealDigits[Pi, 10, 53][[1]]] (* _Robert G. Wilson v_, Jan 04 2013 *) %Y A104691 Cf. A001355. %K A104691 cons,nonn %O A104691 1,1 %A A104691 _Zak Seidov_, Apr 23 2005