3204417424

Appears in sequences

• Number of (n+1) X 3 0..3 arrays with every 2 X 2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2 X 2 subblock sums.at n=5A188368
• T(n,k)=Number of (n+1) X (k+1) 0..3 arrays with every 2 X 2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2 X 2 subblock sums.at n=22A188370