A303252 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

5, 537, 4556, 78679, 1218385, 19457754, 306224454, 4895684572, 77683246701, 1234426654421, 19631272724800, 312041675243059, 4960178416591981, 78856852121294934, 1253577822147874492, 19928141716104516026

Offset: 1

Author

R. H. Hardin, Apr 20 2018

Keywords

• nonn

Comments

Column 6 of A303254.

Examples

			Some solutions for n=5
..0..1..1..0..1..0. .0..0..0..0..0..1. .0..0..0..0..1..1. .0..0..1..0..0..0
..0..0..1..0..0..1. .0..0..1..1..1..0. .0..1..1..0..1..0. .0..0..0..1..1..1
..0..0..1..0..0..0. .0..1..0..0..0..1. .0..1..0..1..0..1. .0..0..0..0..1..1
..0..1..1..0..1..0. .1..0..1..1..1..0. .0..0..0..0..1..1. .0..1..1..1..0..1
..0..0..0..1..1..1. .0..1..1..0..0..1. .0..1..1..1..1..1. .0..0..1..1..0..0
		

Links

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

Crossrefs

Cf. A303254.