A224527 Number of idempotent 5X5 0..n matrices of rank 1.

405, 2155, 5845, 13525, 24575, 44545, 69195, 107925, 156505, 223355, 301605, 413755, 535845, 694695, 882245

Offset: 1

Author

R. H. Hardin Apr 09 2013

Keywords

• nonn

Comments

Row 5 of A224524

Examples

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