559636domain: NAppears in sequencesa(n) = A000124(n)*a(n-3) for n > 2, otherwise n!.at n=12A123151a(n) is the multiplicative inverse of A008514(n+1) modulo A008514(n).at n=25A334137Number of achiral colorings of the 6 square faces of a cube or the 6 vertices of a regular octahedron using n or fewer colors.at n=20A337898