A303413 Number of 6Xn 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

0, 162, 2327, 3256, 21361, 236326, 1716995, 8688851, 56229035, 428784791, 3021617644, 19058753004, 128800589241, 899664264951, 6188584855591, 41513163165807, 282748964373121, 1940464266658865, 13278427810584311

Offset: 1

Author

R. H. Hardin, Apr 23 2018

Keywords

• nonn

Comments

Row 6 of A303410.

Examples

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

Links

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

Crossrefs

Cf. A303410.