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 A334401 #9 Apr 27 2020 02:01:05
%S A334401 1,1,5,4,8,7,3,9,3,5,7,2,5,7,7,4,8,3,7,7,9,7,7,3,3,4,3,1,5,3,8,8,4,0,
%T A334401 9,6,8,4,4,9,5,1,8,9,0,6,6,3,9,4,7,8,9,4,5,5,2,3,2,1,6,3,3,6,1,0,6,1,
%U A334401 6,4,5,7,9,2,4,6,6,7,1,7,4,0,7,9,0,9,4,1,6,0,1,8,5,5,2,8,2,4,0,6,7,6,4,4,4,6,7,9,4,8
%N A334401 Decimal expansion of sinh(Pi).
%C A334401 This constant is transcendental.
%H A334401 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%F A334401 Equals Sum_{k>=0} Pi^(2*k+1)/(2*k+1)!.
%F A334401 Equals 2 * Product_{k>=1} (4*k^2+4)/(4*k^2-1).
%e A334401 (e^Pi - e^(-Pi))/2 = 11.5487393572577483779773343153884...
%t A334401 RealDigits[Sinh[Pi], 10, 110] [[1]]
%Y A334401 Cf. A000796, A001113, A039661, A068470, A073742, A093580, A156648, A323983, A334402.
%K A334401 nonn,cons
%O A334401 2,3
%A A334401 _Ilya Gutkovskiy_, Apr 26 2020