A285148 Number of n X 4 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

2, 58, 820, 11574, 166624, 2446130, 36367674, 545774302, 8250020936, 125432428398, 1916089561276, 29385041758324, 452142438975318, 6976767708453156, 107918789132352190, 1672896226875572812

Offset: 1

Author

R. H. Hardin, Apr 12 2017

Keywords

• nonn

Comments

Column 4 of A285152.

Examples

			Some solutions for n=4
..0..1..0..1. .0..1..0..0. .1..1..1..1. .1..0..0..0. .1..1..1..0
..0..0..1..1. .0..0..0..1. .0..0..1..0. .0..1..0..1. .0..0..1..0
..0..1..0..0. .1..1..1..1. .0..0..0..1. .0..1..1..0. .0..0..1..1
..1..0..0..1. .0..0..0..1. .0..1..0..1. .0..1..1..0. .0..1..1..0
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210

Crossrefs

Cf. A285152.