A304344 Number of nX5 0..1 arrays with every element unequal to 0, 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.

16, 94, 225, 1266, 6373, 27505, 127511, 633229, 3052998, 14783314, 73081407, 360985617, 1785189904, 8892430412, 44371405944, 221759829501, 1111865443315, 5583058007164, 28069337276457, 141361346361838, 712649320776144

Offset

1,1

Comments

Column 5 of A304347.

Links

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

Example

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

Crossrefs

Cf. A304347.

Sequence in context: A301527 A185458 A108676 * A316215 A305639 A317033

Adjacent sequences: A304341 A304342 A304343 * A304345 A304346 A304347

Keyword

nonn

Author

R. H. Hardin, May 11 2018

Status

approved