A213987 Number of n X n 0..5 matrices whose square is also a 0..5 matrix.

3, 92, 14030, 9131098, 22406574462

Offset: 1

Author

R. H. Hardin Jun 30 2012

Keywords

• nonn

Comments

Column 5 of A213990

Examples

			Some solutions for n=3
..0..5..0....0..3..1....0..1..1....0..3..4....0..4..5....0..3..1....0..4..4
..0..0..0....0..0..0....0..0..5....1..0..0....0..0..0....0..0..0....0..0..1
..0..0..0....0..0..2....0..0..0....0..0..1....0..0..0....0..4..0....0..1..0