123628domain: NAppears in sequencesa(n) = C(2n-1,n-1) mod n^3.at n=49A099907Number of 5-step E, S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=26A187588a(n) = binomial(2*c-1, c-1) (mod c^3), where c is the n-th composite.at n=33A244214