56088455

Appears in sequences

• Number of (n+1)X3 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=4A205021
• Number of (n+1)X6 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=1A205024
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=16A205027
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.at n=19A205027