342281domain: NPropertiesPrimalityPrimeyesAppears in sequencesSmaller pair of the primes described in A116074.at n=22A116075Square array read by antidiagonals upwards: T(n,k) (for n>1 and k>0) is the smallest k-digit prime p such that prevprime(p) appears as a substring in p^n; or -1 if no such prime exists.at n=50A383613Prime numbersat n=29366