298764

Appears in sequences

• a(n) = Sum_{k=0..floor(n/2)} T(n,k), T given by A026758.at n=17A026766
• Number of (3n-2)X2 0..6n-5 arrays with upper left zero and lower right 6n-5 and each element differing from its horizontal, vertical and diagonal neighbors by a power of two.at n=3A265488
• T(n,k) = Number of n X k 0..n*k-1 arrays with upper left zero and lower right n*k-1 and each element differing from its horizontal, vertical and diagonal neighbors by a power of two.at n=56A265494