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%I #6 Nov 28 2023 08:50:16
%S 1,9,6,5,4,8,0,9,5,2,7,0,4,6,8,2,0,0,0,4,0,7,9,3,3,7,2,0,8,7,9,3,2,2,
%T 3,1,3,2,5,8,8,9,7,8,7,3,1,0,8,9,3,0,7,7,1,8,0,5,7,3,4,2,9,5,1,3,9,4,
%U 8,8,2,6,3,4,4,4,4,0,6,1,6,9,8,8,0,1,5,9,3,4,3,5,7,6,9,8,4,9,3,9
%N Decimal expansion of BesselJ(0,2*sqrt(2)) (negated).
%F Equals Sum_{k>=0} (-2)^k / k!^2.
%e -0.19654809527046820004079337208793223...
%t RealDigits[BesselJ[0, 2 Sqrt[2]], 10, 100][[1]]
%Y Cf. A091681, A092553, A367574, A367712.
%K nonn,cons
%O 0,2
%A _Ilya Gutkovskiy_, Nov 28 2023
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