1598447domain: NPropertiesPrimalityPrimeyesAppears in sequencesLet P1>3, P2, P3, P4 be 4 consecutive primes with P3-P2 = 2. a(n) = P2 is the earliest occurrence of the 4-tuple with min(P2-P1, P4-P3) = 2*n, or 0 if no such constellation exists.at n=24A347280Prime numbersat n=121027