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A303407 Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
3, 27, 100, 547, 4013, 21361, 115770, 803911, 4667376, 27684643, 182192785, 1120872960, 6916763577, 44766799474, 282088259954, 1776639929407, 11435967743483, 72802740854480, 463125006110247, 2975736132751591 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A303410.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A303410.

Sequence in context: A343105 A200977 A302525 * A173491 A195799 A297662

Adjacent sequences:  A303404 A303405 A303406 * A303408 A303409 A303410

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 23 2018

STATUS

approved

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Last modified September 24 15:40 EDT 2021. Contains 347643 sequences. (Running on oeis4.)