173833661domain: NPropertiesPrimalityPrimeyesAppears in sequencesFinite sum involving signless Stirling numbers of the first kind and the Bell numbers. Appears in the process of normal ordering of n-th power of (a)^4*(a+*a), where a+ and a are boson creation and annihilation operators, respectively.at n=7A121631Prime numbersat n=9705415