A225979 Number of nX5 binary arrays whose sum with another nX5 binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order.

26, 350, 4722, 61808, 737893, 7718077, 69784592, 546720823, 3748375290, 22776885553, 124247348589, 615678539423, 2800456394451, 11798875157732, 46405595059222, 171524109659874, 599254527583339, 1988834906193438

Offset: 1

Author

R. H. Hardin May 22 2013

Keywords

• nonn

Comments

Column 5 of A225982

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..58
• R. H. Hardin, Empirical polynomial of degree 33

Formula

Empirical polynomial of degree 33 (see link above)