398508

Appears in sequences

• Number of n X n 0..2n-2 arrays with upper left zero and lower right 2n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=3A265459
• Number of nX4 0..n+4-2 arrays with upper left zero and lower right n+4-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=3A265462
• T(n,k)=Number of nXk 0..n+k-2 arrays with upper left zero and lower right n+k-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=24A265466
• Number of 4Xn 0..4+n-2 arrays with upper left zero and lower right 4+n-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.at n=3A265469