A298900 - OEIS

A298900

Number of nX6 0..1 arrays with every element equal to 3, 4, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

0, 5, 7, 24, 120, 963, 4689, 34739, 206363, 1388386, 8770132, 58277644, 374054863, 2461101248, 15971848701, 104543429551, 680910307295, 4450730822243, 29026246222317, 189592201754404, 1237265914602821, 8078981295508349

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OFFSET

1,2

COMMENTS

Column 6 of A298902.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

CROSSREFS

Cf. A298902.

Sequence in context: A173996 A024864 A025108 * A357852 A166660 A354202

Adjacent sequences: A298897 A298898 A298899 * A298901 A298902 A298903

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 28 2018

STATUS

approved