232997965200domain: NAppears in sequencesExpansion of e.g.f. 1/(1 - x/(1 - (x^2/2!)/(1 - (x^3/3!)/(1 - (x^4/4!)/(1 - (x^5/5!)/(1 -... (x^n/n!)/(1 -...))))))), a continued fraction.at n=13A257544