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 A371945 #8 Apr 27 2024 08:38:52
%S A371945 5,8,5,6,9,8,8,6,1,9,4,9,7,9,1,8,8,6,4,5,3,3,2,7,0,4,6,9,5,9,1,8,6,1,
%T A371945 5,3,9,7,5,3,6,3,0,2,1,2,8,6,9,4,9,2,8,3,7,4,7,5,2,7,3,3,2,7,7,8,0,9,
%U A371945 0,1,4,0,7,0,0,9,4,3,8,5,6,8,2,9,9,7
%N A371945 Decimal expansion of Sum_{k>=0} (-1)^k / (k^3 + 1).
%e A371945 0.58569886194979188645332704695918615397536302...
%t A371945 s = Chop[N[Sum[(-1)^k/(k^3 + 1), {k, 0, Infinity}], 120]]
%t A371945 First[RealDigits[s]]
%Y A371945 Cf. A339606.
%K A371945 nonn,cons
%O A371945 0,1
%A A371945 _Clark Kimberling_, Apr 24 2024