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Decimal expansion of Sum_{k>=1} 1/(k^2)^(k^2).
6

%I #10 Jan 15 2021 09:15:12

%S 1,0,0,3,9,0,6,2,5,2,5,8,1,1,7,4,7,9,1,7,6,7,4,0,7,2,9,0,6,1,4,3,0,6,

%T 7,4,1,0,7,6,1,2,4,9,2,4,3,7,9,2,8,5,9,4,7,8,7,6,4,0,4,7,9,0,7,9,5,0,

%U 9,9,2,1,9,0,5,0,8,6,9,4,4,5,1,6,6,8,8,4,0,2,7,3,4,8,3,4,4,6,9,6,6,8,8,5

%N Decimal expansion of Sum_{k>=1} 1/(k^2)^(k^2).

%C Sum_{k>=1} 1/(k^2)^(k^2) = 1.003906252581174791767407290614306741076124924379285...

%t RealDigits[N[Sum[1/(n^2)^(n^2), {n, 1, 30}], 200]][[1]]

%Y Cf. A073009, A100085, A134877.

%K nonn,cons

%O 1,4

%A _Artur Jasinski_, Nov 14 2007