50798448

Appears in sequences

• 1/2 the number of colorings of a 6 X 6 square array with n colors.at n=1A068242
• Half the number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.at n=4A209504
• Half the number of (n+1)X6 0..2 arrays with every 2X2 subblock having two or four distinct clockwise edge differences.at n=4A209508