A284221 Number of n X 7 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.

33, 1746, 163708, 17538010, 1970768869, 227677212684, 26772321109067, 3187484402643589, 383012404461341362, 46352294274050867321, 5641487492728040767503, 689803988820235909398592

Offset: 1

Author

R. H. Hardin, Mar 23 2017

Keywords

• nonn

Comments

Column 7 of A284222.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..97

Crossrefs

Cf. A284222.