80761059

Appears in sequences

• Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock singular.at n=3A185512
• Number of (n+1)X5 0..2 arrays with every 2X2 subblock singular.at n=3A185516
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock singular.at n=24A185521