A297719 Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.

37, 2651, 68919, 2699832, 107787351, 4021047904, 154327332017, 5920531350715, 226188909640209, 8657932603026022, 331360189636829166, 12678860316903190032, 485194134262201742340, 18567112995250259829761

Offset: 1

Author

R. H. Hardin, Jan 04 2018

Keywords

• nonn

Comments

Column 7 of A297720.

Examples

			Some solutions for n=3
..0..0..0..0..1..0..0. .1..1..0..0..0..0..0. .1..0..0..1..0..0..0
..1..0..0..1..0..0..0. .0..1..0..0..0..1..1. .0..1..1..1..0..0..0
..1..1..0..0..1..1..0. .0..0..1..0..0..1..0. .0..1..0..0..1..1..1
		

Links

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

Crossrefs

Cf. A297720.