571200

Appears in sequences

• Product of the nonzero exponents in the prime factorization of n!.at n=38A135291
• Unsigned member s=2 of a family of generalizations of the (signed) Lah triangle A008297. All numbers divided by 2.at n=32A136657
• Number of nX2 0..2 arrays with exactly floor(nX2/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order.at n=12A222667
• Terms satisfy: a(2*n) = a(n)*b(n) and a(2*n+1) = a(n)*b(n+1) for n>=0 with a(0)=1, where A(x)^2 = Sum_{n>=0} b(n)*x^n and g.f. A(x) = Sum_{n>=0} a(n)*x^n.at n=16A257889
• a(n) = (n-3)*(n-2)^2*(n-1)^2*n/24.at n=16A292061