A299372 Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

8, 3336, 285931, 22129704, 1795186406, 145700454710, 11808073517522, 957054636207245, 77572170112847769, 6287447361186053475, 509615702368833445640, 41305821175367080066062, 3347955852661976379389792

Offset

1,1

Comments

Column 7 of A299373.

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

Crossrefs

Cf. A299373.

Sequence in context: A201100 A079177 A298279 * A299141 A299936 A299066

Adjacent sequences: A299369 A299370 A299371 * A299373 A299374 A299375

Keyword

nonn

Author

R. H. Hardin, Feb 08 2018

Status

approved