A297680 Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 4 neighboring 1s.

44, 597, 12110, 221420, 4202440, 78957968, 1487819051, 28013761161, 527589764007, 9935480401770, 187107516285853, 3523634803856570, 66357694370878682, 1249658843756374555, 23533781410865979450

Offset: 1

Author

R. H. Hardin, Jan 03 2018

Keywords

• nonn

Comments

Column 6 of A297682.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 57

Crossrefs

Cf. A297682.

Formula

Empirical recurrence of order 57 (see link above)