A050995 - OEIS

%I #12 Aug 12 2019 10:41:45

%S 1,1,2,9,144,1800,64800,39690,12700800,171460800,17146080000,

%T 518668920000,2390026383360,3606379096320000,449813829104640000,

%U 139161153379248000000,4453156908135936000000

%N Reduced denominators of series expansion for integrand in Renyi's parking constant.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/RenyisParkingConstants.html">Renyi's Parking Constants.</a>

%t nmax = 20; Denominator[CoefficientList[Series[Exp[-2*EulerGamma+2*ExpIntegralEi[-x]]/x^2, {x, 0, nmax}], x]] (* _Vaclav Kotesovec_, Aug 12 2019 *)

%Y Cf. A050994, A050996.

%K nonn,frac

%O 0,3

%A _Eric W. Weisstein_