2160000

Appears in sequences

• a(n) = n^2*(n-1)^3/4.at n=25A019584
• Numbers of form 6^i*10^j with i, j >= 0.at n=33A025629
• Number of different ways n! can be represented as the difference of two squares; also, for n >= 4, half the number of positive integer divisors of n!/4.at n=30A138196
• Array T(n,k) read by ascending antidiagonals, where T(n,k) is the denominator of polygamma(n, 1) - polygamma(n, k).at n=41A255009
• Array T(n,k) read by ascending antidiagonals, where T(n,k) is the denominator of polygamma(n, 1) - polygamma(n, k).at n=51A255009
• Alternating powers of 60 and 10 times powers of 60.at n=7A281863
• Numbers that are highly powerful in Gaussian integers.at n=38A335853