571536

Appears in sequences

• Squares which are palindromes in base 5.at n=11A029989
• Number of ways to place a non-attacking white and black rook on n X n chessboard.at n=27A035287
• Squares that are a difference between 2 positive cubes.at n=16A038596
• Sixth column of triangle A075501.at n=3A075919
• a(n)=n^2 times nearest cube to n^2.at n=28A077112
• Initial values for f(x)=phi(sigma(x)) such that iteration of f ends in a cycle of length 18.at n=19A096890
• Denominator of Sum_{k=0..n} 1/binomial(n,k)^3.at n=9A100519
• Numbers which when chopped into one, two or more parts, added and squared result in the same number.at n=20A104113
• Square perimeters of primitive Pythagorean triangles.at n=27A120089
• Triangle read by rows: number of nilpotent partial transformations (of an n-element set) of height r (height(alpha) = |Im(alpha)|), 0 <= r < n.at n=31A141618
• Squares such that square-+5 are primes.at n=17A154711
• Largest divisor of n!/4 which is less than sqrt(n!)/2.at n=11A181899
• Number of (n+1)X3 0..3 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=2A203820
• Number of (n+1)X4 0..3 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=1A203821
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=7A203826
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements.at n=8A203826
• Number of 5Xn 0..1 arrays avoiding 0 0 1 and 0 1 1 horizontally and 0 0 1 and 1 0 1 vertically.at n=9A208144
• Number of subsets of {1,2,...,n-8} without differences equal to 2, 4, 6 or 8.at n=52A224811
• Numbers n such that the product of n and the sum of the reciprocal of their anti-divisors is an integer.at n=31A272890
• 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=30A303987