3510623domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that p-2 and p+2 are divisible by a fourth power.at n=22A089203a(n) is the least prime such that the subsets of { a(1), ..., a(n) } sum up to 2^n different values.at n=21A138000Prime numbersat n=250841