1048601domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 2^n + 5^2.at n=5A104072Primes of the form 5^x + y^5 with x, y > 0.at n=7A250842a(n) is the smallest k > 2^n such that 2^(k-1) == 1 (mod (2^n-1)*k).at n=19A307512Prime numbersat n=82028