520063domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(1) = 2, a(2) = 1; for n >= 3, a(n) = least prime not included earlier that divides the concatenation of all previous terms.at n=20A096097Primes with a prime number of binary digits, and with a prime number of 1's and a prime number of 0's.at n=33A272478Prime numbersat n=43066