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 A367732 #5 Nov 28 2023 13:32:59
%S A367732 8,9,1,2,1,2,7,9,8,1,1,1,3,0,2,3,7,6,0,6,9,8,5,7,8,6,2,4,5,5,3,5,4,6,
%T A367732 2,5,1,6,9,6,0,1,2,5,1,1,9,7,9,4,8,3,2,4,8,6,8,7,7,4,5,4,1,2,3,1,6,6,
%U A367732 5,2,5,5,7,8,8,0,6,9,7,2,2,8,7,3,7,5,0,0,3,5,7,0,7,1,8,2,2,5,1,8
%N A367732 Decimal expansion of Sum_{k>=1} (-1)^(k+1) / (k^2 * k!).
%e A367732 0.89121279811130237606985786245535...
%t A367732 RealDigits[HypergeometricPFQ[{1, 1, 1}, {2, 2, 2}, -1], 10, 100][[1]]
%Y A367732 Cf. A002775, A163931, A239069, A355234, A367731.
%K A367732 nonn,cons
%O A367732 0,1
%A A367732 _Ilya Gutkovskiy_, Nov 28 2023