A285753 Number of 4 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1.

0, 52, 550, 8544, 119506, 1729212, 25450414, 379892924, 5724356600, 86870686676, 1325147534394, 20298649626624, 312012262489322, 4809932665481580, 74334215199171600, 1151283153187656576, 17865166558629037394

Offset: 1

Author

R. H. Hardin, Apr 25 2017

Keywords

• nonn

Comments

Row 4 of A285750.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..130

Crossrefs

Cf. A285750.