122624409600domain: NAppears in sequencesDenominators of coefficients for numerical integration.at n=4A002198E.g.f. x^4/(1-2x).at n=12A052652Expansion of e.g.f. x^3*(1-x)/(1-2*x).at n=12A052671Expansion of e.g.f. 3*x/(1 - 2*x).at n=11A052676