321050788

Appears in sequences

• Half the number of (n+1)X4 0..2 arrays with every 2X2 subblock having two or three distinct clockwise edge differences.at n=3A210271
• Half the number of (n+1)X5 0..2 arrays with every 2X2 subblock having two or three distinct clockwise edge differences.at n=2A210272
• T(n,k)=Half the number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having two or three distinct clockwise edge differences.at n=17A210276
• T(n,k)=Half the number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock having two or three distinct clockwise edge differences.at n=18A210276