269352

Appears in sequences

• Number of different Othello positions at the end of the n-th ply.at n=8A124005
• T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with no equal horizontal or vertical neighbors.at n=24A264954
• Number of 4 X n arrays containing n copies of 0..4-1 with no equal horizontal or vertical neighbors.at n=3A264956