A188413 Number of (6*n) X 6 binary arrays with rows in nonincreasing order, n ones in every column and no more than 3 ones in any row.

166, 17443, 968230, 33313408, 793369090, 14100262412, 197263686098, 2259540285524, 21835069296894, 182229535192536

Offset: 1

Author

R. H. Hardin, Mar 30 2011

Keywords

• nonn

Comments

Column 6 of A188416.

Examples

			Some solutions for 12 X 6
..1..1..0..0..0..0....1..0..0..0..0..0....1..1..0..0..0..0....1..0..0..0..0..0
..1..0..0..1..1..0....1..0..0..0..0..0....1..0..0..0..0..0....1..0..0..0..0..0
..0..1..1..0..0..0....0..1..1..0..1..0....0..1..0..1..0..1....0..1..0..0..0..1
..0..0..1..0..0..0....0..1..0..1..0..1....0..0..1..0..1..1....0..1..0..0..0..0
..0..0..0..1..0..1....0..0..1..0..1..0....0..0..1..0..1..0....0..0..1..1..0..0
..0..0..0..0..1..0....0..0..0..1..0..0....0..0..0..1..0..0....0..0..1..0..1..0
..0..0..0..0..0..1....0..0..0..0..0..1....0..0..0..0..0..0....0..0..0..1..0..1
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..1..0
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..0..0..0
		

Crossrefs

Cf. A188416.