A299220 Number of nX7 0..1 arrays with every element equal to 0, 2, 3, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

1, 864, 5066, 84948, 1992466, 48911434, 1226106440, 30729398000, 778116037031, 19790046600537, 502545421141263, 12776486958379265, 324936759791317709, 8263214485959250239, 210151973765681649219, 5344770791861074550207

Offset

1,2

Comments

Column 7 of A299221.

Links

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

Example

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

Crossrefs

Cf. A299221.

Sequence in context: A298507 A097982 A298327 * A300034 A064321 A210408

Adjacent sequences: A299217 A299218 A299219 * A299221 A299222 A299223

Keyword

nonn

Author

R. H. Hardin, Feb 05 2018

Status

approved