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 A138732 #6 Sep 09 2013 11:12:10
%S A138732 0,99232,2,6,1,3,4,2,1,2,1,16,8,2,57,13,2,1,16,1,1,6,5,5,1,1,6,1,1,3,
%T A138732 1,1,2,9,18,1,8,15,2,2,1,2,1,2,1,5,2,3,5,1,3,4,17,11,1,2,1,6,1,2,3,15,
%U A138732 3,12,1,8,6,1,1,1,2,4,29,44,1,1,7,1,1,1,2,1,1,1,1,1,2,22,1,2,5,8,2,2,5,2
%N A138732 Continued fraction for 8th Du Bois Reymond constant.
%t A138732 ContinuedFraction[FullSimplify[TrigToExp[ -3 - 2Residue[x^2/((Tan[x] - x) (1 + x^2)^4), {x, I}]]], 100] (* _Artur Jasinski_ *)
%o A138732 (PARI) contfrac((3*exp(8) - 24*exp(6) + 36*exp(4) - 8*exp(2) - 1167)/384) \\ _Michel Marcus_, Sep 09 2013
%Y A138732 Cf. A062545, A062546, A085466, A085467, A138729, A138730, A138731, A138732, A138733.
%K A138732 nonn,cofr
%O A138732 1,2
%A A138732 _Artur Jasinski_, Mar 26 2008