1967440

Appears in sequences

• Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock singular.at n=2A184764
• Number of (n+1)X4 0..3 arrays with every 2X2 subblock singular.at n=2A184767
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock singular.at n=12A184773