A302228 Number of 5Xn 0..1 arrays with every element equal to 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

0, 111, 675, 4237, 40395, 338204, 3018243, 26373655, 229022022, 2020776808, 17623530150, 154526692002, 1354126269239, 11852307962264, 103884063578946, 909810907872807, 7970268921853663, 69825955304629074, 611653034702238664

Offset: 1

Author

R. H. Hardin, Apr 03 2018

Keywords

• nonn

Comments

Row 5 of A302224.

Examples

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

Links

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

Crossrefs

Cf. A302224.