563331877domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that can be written in binary representation as concatenation of two primes: p and p-2. That is, primes representable as p * 2^L + p-2, where p and p-2 are primes, and L is the length of binary representation of p-2: L = A070939(p-2).at n=20A232235Prime numbersat n=29507638