A293099 Number of n X 7 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.

3, 2220, 205195, 24773296, 2728695681, 328979478088, 38469698642410, 4665971856266714, 560706154294046909, 68470475134869958112, 8347937003432022928553, 1025774531240519319091628

Offset: 1

Author

R. H. Hardin, Sep 30 2017

Keywords

• nonn

Comments

Column 7 of A293100.

Examples

			Some solutions for n=2
..0..0..1..0..0..0..0. .0..0..0..1..0..0..0. .0..1..0..0..0..0..1
..0..0..1..0..1..1..1. .1..1..0..0..1..1..1. .0..1..0..0..1..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..25

Crossrefs

Cf. A293100.