17640000

Appears in sequences

• Squares of even pentagonal pyramidal numbers.at n=15A014800
• a(n) = (-1)^(n(n-1)/2) * Product_{k=0,...,n-1} (n+k-1)!/((k!)^2 * (n-1-k)!).at n=5A060739
• Like A073327, but multiply the numerical values of the letters instead of adding them.at n=18A075831
• Number of n X 3 arrays of occupancy after each element moves to some horizontal or vertical neighbor.at n=5A217268
• Number of nX6 arrays of occupancy after each element moves to some horizontal or vertical neighbor.at n=2A217271
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor.at n=30A217273
• T(n,k)=Number of nXk arrays of occupancy after each element moves to some horizontal or vertical neighbor.at n=33A217273
• Number of ways to place 4 points on a triangular grid of side n so that no two of them are adjacent.at n=14A239570
• Triangle read by rows: T(n, k) = (binomial(n,k)*binomial(n+k,k))^2 = A063007(n, k)^2, for n >= 0, k = 0..n.at n=31A303987
• Numbers m where A217854(m) is a record minimum.at n=36A363657