202481domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes p such that (12*p - 1, 12*p + 1) and (18*p - 1, 18*p + 1) are twin primes.at n=24A138660a(n) = prime(k-1) with k = n^2 + prime(n)^2.at n=31A243893Prime numbersat n=18184