A266544 Number of nX5 binary arrays with rows and columns lexicographically nondecreasing and row and column sums nonincreasing.

2, 4, 8, 16, 36, 58, 110, 196, 363, 695, 1157, 2023, 3446, 5755, 9485, 14901, 23156, 35568, 53350, 79575, 114919, 165223, 233650, 327246, 453231, 618603, 836533, 1122433, 1490044, 1967385, 2565448, 3329153, 4284884, 5482977, 6970961, 8800503

Offset: 1

Author

R. H. Hardin, Dec 31 2015

Keywords

• nonn

Comments

Column 5 of A266547.

Examples

			Some solutions for n=6
..0..1..1..1..1....0..0..1..1..1....0..1..1..1..1....0..1..1..1..1
..0..1..1..1..1....0..1..0..1..1....0..1..1..1..1....0..1..1..1..1
..1..0..0..1..1....1..0..1..0..0....1..0..0..1..1....1..0..0..0..1
..1..0..1..0..0....1..0..1..0..0....1..0..0..1..1....1..0..0..1..0
..1..1..0..0..0....1..1..0..0..0....1..1..1..0..0....1..0..1..0..0
..1..1..0..0..0....1..1..0..0..0....1..1..1..0..0....1..1..0..0..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..60

Crossrefs

Cf. A266547.