A298459 - OEIS

A298459

Number of nX6 0..1 arrays with every element equal to 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

0, 41, 710, 17443, 603930, 19100497, 628485305, 20637616811, 679019933720, 22363401710009, 736631123265871, 24268529324674384, 799566716637697282, 26343734600927008513, 867969518747983340357, 28597853736091126825994

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OFFSET

1,2

COMMENTS

Column 6 of A298461.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A298461.

Sequence in context: A009730 A009761 A118448 * A163039 A060563 A200914

Adjacent sequences: A298456 A298457 A298458 * A298460 A298461 A298462

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 19 2018

STATUS

approved