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

1,1

Comments

Column 4 of A285152.

Links

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

Example

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

Crossrefs

Cf. A285152.

Sequence in context: A121931 A343578 A156507 * A115610 A341082 A191798

Adjacent sequences: A285145 A285146 A285147 * A285149 A285150 A285151

Keyword

nonn

Author

R. H. Hardin, Apr 12 2017

Status

approved