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 A360938 #21 Dec 31 2024 11:14:06
%S A360938 1,8,6,2,2,9,5,7,4,3,3,1,0,8,4,8,2,1,9,8,8,8,3,6,1,3,2,5,1,8,2,6,2,0,
%T A360938 5,7,4,9,0,2,6,7,4,1,8,4,9,6,1,5,5,4,7,6,5,6,1,2,8,7,9,5,1,4,4,2,3,7,
%U A360938 3,6,5,4,5,7,3,5,7,9,8,0,0,2,9,5,1,8,7,1,9,9,7,0,1,5,6,6,1,4,6,3,3,4,5,8,5
%N A360938 Decimal expansion of arcsinh(Pi).
%D A360938 Jerome Spanier and Keith B. Oldham, "Atlas of Functions", Hemisphere Publishing Corp., 1987, chapter 31, page 291.
%F A360938 Equals log(Pi + sqrt(Pi^2 + 1)) = log(A188725).
%F A360938 Equals Pi*Integral_{x=0..1} 1/sqrt((Pi^2)*x^2 + 1) dx.
%e A360938 1.862295743310848219888361325182620574902674184961554765612879514423...
%t A360938 RealDigits[ArcSinh[Pi], 10, 105][[1]]
%o A360938 (PARI) asinh(Pi) \\ _Michel Marcus_, Feb 26 2023
%Y A360938 Cf. A188725, A359540, A361518, A361519.
%K A360938 cons,nonn
%O A360938 1,2
%A A360938 _Wolfe Padawer_, Feb 26 2023