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 A114041 #25 Jan 01 2020 11:26:11
%S A114041 3,6,9,8,6,8,7,4,3,4,8,4,8,4,7,9,4,4,8,9,5,8,4,8,7,7,0,2,9,5,9,4,8,1,
%T A114041 8,7,4,3,2,7,8,7,2,0,9,7,9,6,5,6,8,5,8,7,3,7,5,5,8,7,2,2,6,6,0,4,5,3,
%U A114041 4,5,8,6,0,3,2,0,9,6,4,8,4,8,5,2,1,2,8,4,5,3,3,9,5,2,3,7,1,8,2
%N A114041 Decimal expansion of -x, the real root of the power series with semiprime coefficients.
%C A114041 This is the semiprime analog of A088751.
%C A114041 Terms computed by _T. D. Noe_.
%F A114041 Digits of -x where x is the real root of 1 + 4x + 6x^2 + 9x^3 + 10x^4 + 14x^5 ... = 1 + Sum_{i>=1} A001358(i)*x^i.
%e A114041 -0.36986874348484794489584877...
%t A114041 A001358:= Select[Range[3000], PrimeOmega[#] == 2 &]; RealDigits[-x/.FindRoot[-1 == Sum[A001358[[j]]*x^j, {j, 500}], {x, {0, 0.5}}, WorkingPrecision -> 105], 10, 100][[1]]//First (* _G. C. Greubel_, Dec 31 2019 *)
%Y A114041 Cf. A001358, A072508, A088751.
%K A114041 cons,nonn
%O A114041 1,1
%A A114041 _Jonathan Vos Post_, Feb 01 2006