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 A050994 #13 Feb 16 2025 08:32:41
%S A050994 1,-2,5,-22,293,-2711,65947,-25351,4787053,-36179867,1934943511,
%T A050994 -30066910943,68657648659,-49704534392927,2888323549541951,
%U A050994 -405291453396983779,5739056879585221501,-71739598482043345121
%N A050994 Reduced numerators of series expansion for integrand in Renyi's parking constant.
%H A050994 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/RenyisParkingConstants.html">Renyi's Parking Constants.</a>
%t A050994 nmax = 20; Numerator[CoefficientList[Series[Exp[-2*EulerGamma+2*ExpIntegralEi[-x]]/x^2, {x, 0, nmax}], x]] (* _Vaclav Kotesovec_, Aug 12 2019 *)
%Y A050994 Cf. A050995.
%K A050994 sign,frac
%O A050994 0,2
%A A050994 _Eric W. Weisstein_