206209domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that are concatenations of n with n + 3.at n=26A032626Smallest m such that the period of the continued fraction of sqrt(m) is A215485(n); records of A013646.at n=41A215508Prime numbers that precede and follow consecutive balanced primes.at n=12A374507Prime numbersat n=18484