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%I #8 Apr 26 2024 07:57:48
%S 7,6,1,3,1,0,2,0,4,0,0,1,1,0,3,4,8,6,3,8,8,7,3,1,2,7,8,6,7,7,8,3,8,4,
%T 1,1,6,0,4,8,8,2,7,1,5,7,7,9,7,2,6,0,9,5,2,2,6,8,2,1,7,0,3,3,3,3,9,4,
%U 4,7,5,6,1,0,6,0,3,8,2,8,3,6,4,4,1,8
%N Decimal expansion of Sum_{k>=0} (-1)^k / (k^2 + k + 1).
%e 0.761310204001103486388731278677838411604882...
%t s = Chop[N[Sum[(-1)^k/(k^2 + k + 1), {k, 0, Infinity}], 120]]
%t First[RealDigits[s]]
%Y Cf. A372253.
%K nonn,cons
%O 0,1
%A _Clark Kimberling_, Apr 24 2024
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