6371258488

Appears in sequences

• Number of (n+1)X3 0..3 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors.at n=4A205278
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors.at n=19A205281