A188420 Number of (5*n)Xn binary arrays with rows in nonincreasing order, 5 ones in every column and no more than 3 ones in any row.

1, 6, 150, 11712, 2181522, 793369090, 498407294632, 497114063711190

Offset: 1

Author

R. H. Hardin Mar 30 2011

Keywords

• nonn

Comments

Row 5 of A188416

Examples

			All solutions for 10X2
..1..1....1..1....1..0....1..1....1..1....1..1
..1..1....1..1....1..0....1..0....1..1....1..1
..1..1....1..0....1..0....1..0....1..1....1..1
..1..0....1..0....1..0....1..0....1..1....1..1
..1..0....1..0....1..0....1..0....1..1....1..0
..0..1....0..1....0..1....0..1....0..0....0..1
..0..1....0..1....0..1....0..1....0..0....0..0
..0..0....0..1....0..1....0..1....0..0....0..0
..0..0....0..0....0..1....0..1....0..0....0..0
..0..0....0..0....0..1....0..0....0..0....0..0