A302876 Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

21, 363, 722, 5871, 41498, 359518, 3780984, 44888558, 569313013, 7621363641, 104570444900, 1454457203293, 20411212109809, 287723152198003, 4065886450724385, 57544773261064748, 815093693449992494

Offset: 1

Author

R. H. Hardin, Apr 15 2018

Keywords

• nonn

Comments

Column 7 of A302877.

Examples

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

Links

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

Crossrefs

Cf. A302877.