A298279 Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.

8, 3336, 285280, 22110710, 1794078025, 145597697355, 11799327975543, 956310372633436, 77508769959888329, 6282060733319747867, 509159008435129806085, 41267175589185662281824, 3344691468438566682506990

Offset

1,1

Comments

Column 7 of A298280.

Links

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

Example

Some solutions for n=2
..0..1..1..0..1..1..1. .0..1..0..1..0..1..1. .0..0..0..1..1..1..0
..1..0..0..1..0..0..0. .1..0..1..1..0..0..0. .1..1..0..1..1..1..0

Crossrefs

Cf. A298280.

Sequence in context: A145260 A201100 A079177 * A299372 A299141 A299936

Adjacent sequences: A298276 A298277 A298278 * A298280 A298281 A298282

Keyword

nonn

Author

R. H. Hardin, Jan 16 2018

Status

approved