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A304674 Number of nX6 0..1 arrays with every element unequal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero. 1
1, 49, 131, 598, 3525, 20932, 122388, 711362, 4369285, 26155072, 156304793, 943548083, 5679024203, 34141672780, 205491382920, 1237167747821, 7444659026254, 44802139128177, 269672072450366, 1623026776303690 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A304676.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A304676.

Sequence in context: A044681 A250311 A211727 * A257524 A020256 A304171

Adjacent sequences:  A304671 A304672 A304673 * A304675 A304676 A304677

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 16 2018

STATUS

approved

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Last modified October 18 06:27 EDT 2021. Contains 348065 sequences. (Running on oeis4.)