A303196 Number of n X 7 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

21, 185, 233, 687, 7425, 34801, 164295, 1053249, 5803057, 30459340, 175958088, 988572609, 5409436965, 30475463803, 171059829077, 949886716408, 5320086247758, 29806428448927, 166317770692219, 930326534497792

Offset: 1

Author

R. H. Hardin, Apr 19 2018

Keywords

• nonn

Comments

Column 7 of A303197.

Examples

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

Links

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

Crossrefs

Cf. A303197.