A298832 Number of nX6 0..1 arrays with every element equal to 1, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

1, 88, 15, 489, 3282, 16551, 226883, 1917869, 16022685, 179166054, 1784881081, 15874121652, 167851452385, 1695259719084, 15893552680555, 162450100990858, 1634524710070620, 15778446550779276, 158567398271907840

Offset

1,2

Comments

Column 6 of A298834.

Links

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

Example

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

Crossrefs

Cf. A298834.

Sequence in context: A072692 A287590 A133391 * A298620 A299586 A033408

Adjacent sequences: A298829 A298830 A298831 * A298833 A298834 A298835

Keyword

nonn

Author

R. H. Hardin, Jan 27 2018

Status

approved