61827domain: NAppears in sequencesNumbers n such that p=n^2+2, p+2, p+6 and p+8 are four consecutive primes.at n=4A086220Sum of n!!, with n>=0.at n=12A129981Numbers k such that k^2+4, k^2+8, and k^2+10 are prime.at n=26A157929