336199domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes of the form 2*p^2 + 4*p + 1, where p is also prime.at n=28A164041Primes that can be generated by the concatenation in base 4, in descending order, of two consecutive integers read in base 10.at n=36A287303Prime numbersat n=28889