503676

Appears in sequences

• Half the number of (n+1) X 2 0..2 arrays with no 2 X 2 subblock having sum 4.at n=5A183784
• Half the number of (n+1)X7 0..2 arrays with no 2X2 subblock having sum 4.at n=0A183789
• T(n,k)=Half the number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having sum 4.at n=15A183792
• T(n,k)=Half the number of (n+1)X(k+1) 0..2 arrays with no 2X2 subblock having sum 4.at n=20A183792