A297587 Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 or 4 neighboring 1s.

1, 85, 1243, 4428, 31171, 395011, 3355439, 21941552, 181405030, 1636558715, 13131349357, 101903293904, 842245479173, 7011923308367, 56621895312007, 457025771024489, 3744870543676752, 30634057145033024, 248841614953642550

Offset: 1

Author

R. H. Hardin, Jan 01 2018

Keywords

• nonn

Comments

Row 6 of A297582.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 94

Crossrefs

Cf. A297582.

Formula

Empirical recurrence of order 94 (see link above)