A306058 - OEIS

A306058

Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero.

32, 184, 526, 2168, 16833, 99928, 513811, 3086539, 18841620, 107600141, 620569652, 3677697287, 21538095731, 125066191568, 731799182359, 4288741766057, 25039445198605, 146247552076704, 855504338243757, 5001421011839795

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

OFFSET

1,1

COMMENTS

Column 6 of A306060.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A306060.

Sequence in context: A165010 A304846 A316543 * A317236 A233387 A200840

Adjacent sequences: A306055 A306056 A306057 * A306059 A306060 A306061

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 18 2018

STATUS

approved