A278853 Number of nX6 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.

1, 1486, 118158, 4950399, 154090507, 4026240722, 92891826961, 1935392159582, 36831668321915, 644951602341507, 10454319538089429, 157736949429737228, 2227039251935175027, 29569631792451694669, 370951068728197563294

Offset: 1

Author

R. H. Hardin, Nov 29 2016

Keywords

• nonn

Comments

Column 6 of A278855.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..153

Crossrefs

Cf. A278855.