A281718 Number of 4Xn 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.

8, 6, 14, 97, 294, 1410, 5781, 23798, 103034, 429701, 1822286, 7734672, 32650303, 138610834, 587182558, 2488856940, 10558553240, 44771374413, 189944049261, 805892553288, 3419413103710, 14511303192013, 61585052285760

Offset: 1

Author

R. H. Hardin, Jan 28 2017

Keywords

• nonn

Comments

Row 4 of A281715.

Examples

			Some solutions for n=4
..0..1..0..1. .0..1..1..1. .0..0..0..1. .0..1..0..0. .0..0..0..0
..1..0..1..0. .1..0..0..0. .0..0..1..0. .1..0..1..0. .0..0..1..1
..0..1..0..1. .1..1..0..0. .0..1..0..1. .0..1..0..1. .1..1..1..1
..1..0..1..1. .1..1..1..0. .1..0..1..1. .1..0..1..0. .1..1..1..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical recurrence of order 72

Crossrefs

Cf. A281715.

Formula

Empirical recurrence of order 72 (see link above)