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 A254446 #12 May 19 2022 08:11:00
%S A254446 1,2,8,4,4,2,3,0,2,7,3,0,3,6,7,6,5,2,4,5,7,2,8,5,7,5,7,9,8,4,1,3,3,8,
%T A254446 8,5,8,4,4,4,0,2,9,3,7,6,5,5,4,2,2,3,6,1,1,1,8,5,6,5,0,4,9,3,8,8,0,9,
%U A254446 5,7,0,6,4,7,1,2,4,5,3,5,2,6,2,7,9,5,0,7,3,5,4,1,3,0,9,8,8,6,2,6,0,9,6,7,0
%N A254446 Decimal expansion of Sum_{n>=1} 1/sinh(n).
%e A254446 1.284423027303676524572857579841338858444029376554223611185650493880957...
%p A254446 evalf(sum(1/sinh(n), n = 1..infinity), 120);
%t A254446 RealDigits[N[Re[Sum[1/Sinh[n],{n,1,Infinity}]],110],10,105][[1]]
%o A254446 (PARI) suminf(n=1, 1/sinh(n)) \\ _Michel Marcus_, Jan 30 2015
%Y A254446 Cf. A185393, A240964, A254445, A335414.
%K A254446 nonn,cons
%O A254446 1,2
%A A254446 _Vaclav Kotesovec_, Jan 30 2015