A302667 Number of nX5 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

3, 146, 760, 6110, 42367, 316977, 2320879, 17037458, 125456575, 920577056, 6771994976, 49750520267, 365694010435, 2687564829667, 19752736970617, 145173898526499, 1066965083553746, 7841771608569736, 57633622628200420

Offset: 1

Author

R. H. Hardin, Apr 11 2018

Keywords

• nonn

Comments

Column 5 of A302670.

Examples

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

Links

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

Crossrefs

Cf. A302670.