248892domain: NAppears in sequencesa(n) = A027052(n, 2n-1).at n=14A027056a(n) = n^5 + 5n.at n=12A180355a(n) is the maximum permanent of an n X n circulant matrix whose rows are permutations of [0, 1, 2, ..., n-1].at n=6A392192