A299584 Number of nX4 0..1 arrays with every element equal to 1, 3, 4, 5, 7 or 8 king-move adjacent elements, with upper left element zero.

1, 16, 8, 84, 229, 720, 4326, 15638, 62867, 299505, 1292124, 5301037, 23788861, 105382810, 445139633, 1954124848, 8627099683, 37128694429, 161785978010, 710198752914, 3082692941493, 13413874059673, 58661578434695

Offset

1,2

Comments

Column 4 of A299588.

Links

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

R. H. Hardin, Empirical recurrence of order 64

Formula

Empirical recurrence of order 64 (see link above)

Example

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. .0..0..0..0. .0..0..0..0. .0..0..0..0
..0..0..0..0. .1..1..1..1. .0..0..0..0. .0..0..0..0. .0..0..0..0
..1..1..1..1. .1..1..1..1. .0..0..1..0. .0..1..0..0. .0..0..0..0
..1..1..0..0. .1..1..1..1. .0..0..0..1. .1..0..0..0. .0..0..0..0

Crossrefs

Cf. A299588.

Sequence in context: A316690 A258160 A040243 * A213558 A164703 A153724

Adjacent sequences: A299581 A299582 A299583 * A299585 A299586 A299587

Keyword

nonn

Author

R. H. Hardin, Feb 13 2018

Status

approved