A293083 Number of n X 4 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, 23, 486, 8108, 126903, 1955375, 30064393, 462569756, 7127871677, 110032675158, 1701716646013, 26365297553133, 409178131040177, 6360241131134572, 99006293076495153, 1543225051401234780, 24083853470118205024

Offset: 1

Author

R. H. Hardin, Sep 30 2017

Keywords

• nonn

Comments

Column 4 of A293087.

Examples

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

Links

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

Crossrefs

Cf. A293087.