100000010101domain: NAppears in sequencesLesser of emirps (pairs) with digits 0 and 1 only.at n=10A155513Primes made up of 0's and four 1's only.at n=19A157711Smallest n-digit prime with only digits 0 and 1, and having least digit sum (or 0, if no such prime exists).at n=11A168586