A285158 Number of 7 X n 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.

0, 3752, 314197, 36367674, 3943470769, 448765516394, 52105131287528, 6154165757308640, 735304860260893623, 88615482354663882652, 10750513270733637895616, 1311121613505876821936074

Offset

1,2

Comments

Row 7 of A285152.

Links

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

Example

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

Crossrefs

Cf. A285152.

Sequence in context: A235243 A368589 A180974 * A238031 A178162 A236051

Adjacent sequences: A285155 A285156 A285157 * A285159 A285160 A285161

Keyword

nonn

Author

R. H. Hardin, Apr 12 2017

Status

approved