421241domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that each of the numbers p^k for k=1..5 has exactly two 1s in its decimal representation.at n=25A175964Primes that are the concatenation p|q of two primes p and q with the same number of digits, where r = (p+q)/2, r|q and p|r are all primes.at n=35A358420Prime numbersat n=35485