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A317860 Number of nX5 0..1 arrays with every element unequal to 1, 2 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
3, 21, 32, 155, 350, 1001, 2616, 7926, 21882, 65134, 190018, 559868, 1657078, 4911800, 14594042, 43385463, 129133814, 384672503, 1145753084, 3415594783, 10180797904, 30355084163, 90514426385, 269916109949, 804962375711 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A317863.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A317863.

Sequence in context: A292310 A045802 A006133 * A039766 A072849 A287930

Adjacent sequences:  A317857 A317858 A317859 * A317861 A317862 A317863

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 09 2018

STATUS

approved

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Last modified June 20 04:43 EDT 2021. Contains 345157 sequences. (Running on oeis4.)