873787domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) is the smallest prime p of the form 4k+3 such that nextprime(p) - p = 4n.at n=18A082098prime(k) for those k where floor((2*(prime(k+1)-prime(k))*PrimePi(k) mod (8*k))/k) = m with m = 15.at n=29A109569Prime numbersat n=69366