11198203domain: NPropertiesPrimalityPrimeyesAppears in sequencesExpansion of 1/(1 - x - 2*x/(1 - 2*x - 3*x/(1 - 3*x - 4*x/(1 - 4*x - 5*x/(1 - ...))))), a continued fraction.at n=7A306576Prime numbersat n=738765