847249408

Appears in sequences

• Number of (n+1) X (n+1) 0..1 arrays with the number of rightwards and downwards edge increases in each 2 X 2 subblock differing from the number in all its horizontal and vertical neighbors.at n=22A205064
• Bitmasks that can be used to generate a sequence of all positive integers up to 2^n.at n=28A246866