A302154 Number of 6Xn 0..1 arrays with every element equal to 0, 2, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

32, 1, 84, 257, 1529, 15999, 145150, 1482725, 15902462, 174951740, 1970629796, 22494667102, 258629509515, 2984220411587, 34476629235844, 398556898099009, 4609165601937455, 53315795633961409, 616815626588521291

Offset: 1

Author

R. H. Hardin, Apr 02 2018

Keywords

• nonn

Comments

Row 6 of A302150.

Examples

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

Links

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

Crossrefs

Cf. A302150.