876011domain: NPropertiesPrimalityPrimeyesAppears in sequencesInitial members p of prime 5-tuples (p, p+2, p+6, p+8, p+12).at n=32A022006Primes at which difference pattern X2424Y (X and Y >= 6) occurs in A001223.at n=26A052167Numbers whose Collatz trajectories cross their initial values a record number of times.at n=31A319738Prime numbersat n=69529