87400

Appears in sequences

• Diagonal sums of number triangle A113582.at n=37A154324
• Number of strings of numbers x(i=1..n) in 0..3 with sum i^2*x(i)^2 equal to n^2*9.at n=14A184234
• Expansion of x*(1 + 4*x + x^2)/((1 - x)^5*(1 + x)^4).at n=46A290055
• Wiener index of the n X n rook complement graph.at n=19A292058
• Number of nX4 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero.at n=16A304129