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 A334400 #5 Apr 27 2020 01:58:35
%S A334400 7,6,1,0,1,2,5,1,3,8,6,6,2,2,8,8,3,6,3,4,1,8,6,1,0,2,3,0,1,1,3,3,7,9,
%T A334400 1,6,5,2,3,3,5,6,2,7,9,2,5,5,4,4,6,8,1,0,2,7,7,1,6,0,9,9,7,3,7,4,0,7,
%U A334400 8,3,6,5,1,8,8,0,8,4,5,3,7,0,3,5,6,2,7,2,6,0,5,4,0,5,6,2,2,4,6,4,1,2,8,6,3,1,2,6,7,1
%N A334400 Decimal expansion of cosh(e).
%F A334400 Equals Sum_{k>=0} e^(2*k)/(2*k)!.
%e A334400 (e^e + e^(-e))/2 = 7.6101251386622883634186102301133791...
%t A334400 RealDigits[Cosh[E], 10, 110] [[1]]
%Y A334400 Cf. A001113, A073226, A073230, A073743, A085660, A334399.
%K A334400 nonn,cons
%O A334400 1,1
%A A334400 _Ilya Gutkovskiy_, Apr 26 2020