A293093 Number of 7 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 two less than the number of 0's adjacent to some 1.

0, 1420, 246743, 30064393, 3464680837, 405651046593, 48001754870966, 5741377234777552, 692287714517793203, 84012955651693381631, 10248181988944597335712, 1255426108983775803770706

Offset: 1

Author

R. H. Hardin, Sep 30 2017

Keywords

• nonn

Comments

Row 7 of A293087.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..24

Crossrefs

Cf. A293087.