1021381domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmallest prime of the form m*Q(n) + r where Q(n) = A002110(n) (the n-th primorial) and r = prime(n+1)^2.at n=6A054757Number of strictly 2-connected graphs with n edges.at n=16A289470Prime numbersat n=80084