A220804 Sum of neighbor maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal and vertical neighbors in a random 0..3 nX5 array.

24, 928, 30766, 1048576, 33358976, 1073741824, 34348186888, 1099436130304

Offset: 1

Author

R. H. Hardin Dec 21 2012

Keywords

• nonn

Comments

Column 5 of A220805

Examples

			Some solutions for n=3
..1..1..1..1..1....0..0..1..1..0....0..0..1..0..1....0..1..0..0..0
..0..0..1..1..1....0..0..0..1..1....0..0..1..1..0....1..0..1..0..1
..0..1..1..0..0....1..1..0..1..0....0..1..0..0..0....1..0..0..0..1