98420domain: NAppears in sequencesa(n) = floor(n(n-1)(n-2)(n-3)/18).at n=38A011928Expansion of e.g.f. x*exp(2*x)*cosh(x).at n=10A082133Number of ways to place 2 nonattacking amazons (superqueens) on an n X n board.at n=21A172200Numbers whose divisors have a harmonic mean with a denominator 2.at n=29A348411