559713domain: NAppears in sequencesNumber of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 10000-11111-00001 pattern in any orientation.at n=14A147068Numbers k such that {k^2 + 2, k^2 + 4} and {k^3 + 2, k^3 + 4} are twin prime pairs.at n=30A283698