369774720domain: NAppears in sequences3rd differences of factorial numbers.at n=9A001565Number of permutations p of [n] with p(i) <> i^2.at n=12A187847Number of acyclic orientations of the Turán graph T(n,9).at n=12A267389Tenth column of Euler's difference table in A068106.at n=11A284206