A316243 - OEIS

A316243

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

1, 908, 13876, 522349, 20134728, 772981023, 30308496367, 1182294908774, 46316454084857, 1813149363337170, 71021918379356367, 2781882031040610760, 108971691811914024279, 4268721007579120746968, 167217433850643103927285

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Column 7 of A316244.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A316244.

Sequence in context: A317270 A002617 A304418 * A305953 A317214 A305684

Adjacent sequences: A316240 A316241 A316242 * A316244 A316245 A316246

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 27 2018

STATUS

approved