3452051294

Appears in sequences

• Half the number of (n+1)X3 0..3 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.at n=5A209907
• Half the number of (n+1)X7 0..3 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.at n=1A209911
• T(n,k)=Half the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.at n=22A209913