53389

Appears in sequences

• a(n) = n^3 - n^2 - n - 1.at n=38A083074
• Number of (n+1) X (7+1) 0..2 arrays with every 2 X 2 subblock summing to 4 and no 2 X 2 subblock having exactly two nonzero entries.at n=10A251148
• Least k such that sigma(k*n)/tau(k*n) = sigma(k*n+1)/tau(k*n+1), or 0 if no such k exists.at n=19A274774
• Number of n X 4 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors.at n=4A282992
• Number of nX5 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors.at n=3A282993
• T(n,k) is the number of n X k 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors.at n=31A282996
• T(n,k) is the number of n X k 0..1 arrays with no 1 equal to more than one of its horizontal and vertical neighbors.at n=32A282996