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A301909 Number of 5Xn 0..1 arrays with every element equal to 0, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero. 1
16, 1, 16, 10, 12, 92, 320, 1588, 7234, 34477, 171770, 861562, 4318341, 21575848, 107657594, 537357962, 2682516710, 13395048430, 66897233633, 334110946467, 1668703731020, 8334274683849, 41625156594335, 207894886362394 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A301906.

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

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

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

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

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

CROSSREFS

Cf. A301906.

Sequence in context: A040270 A303327 A070539 * A070583 A133821 A002651

Adjacent sequences:  A301906 A301907 A301908 * A301910 A301911 A301912

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 28 2018

STATUS

approved

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Last modified August 14 13:00 EDT 2020. Contains 336480 sequences. (Running on oeis4.)