A304594 Number of nX5 0..1 arrays with every element unequal to 1, 2, 3, 4 or 6 king-move adjacent elements, with upper left element zero.

3, 313, 2207, 28251, 316549, 3512756, 39628005, 447041946, 5016259480, 56474020081, 635371155997, 7145913774394, 80393942132258, 904388090680474, 10173559797380479, 114447387287786722, 1287461108079193254

Offset

1,1

Comments

Column 5 of A304597.

Links

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

Example

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

Crossrefs

Cf. A304597.

Sequence in context: A305285 A304898 A316580 * A316380 A306140 A317373

Adjacent sequences: A304591 A304592 A304593 * A304595 A304596 A304597

Keyword

nonn

Author

R. H. Hardin, May 15 2018

Status

approved