3233921644

Appears in sequences

• Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2.at n=6A251205
• Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2.at n=2A251209