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A301538 Number of nX5 0..1 arrays with every element equal to 0, 1 or 3 horizontally or vertically adjacent elements, with upper left element zero. 1
8, 21, 61, 212, 658, 2417, 9037, 33526, 125626, 477972, 1824213, 6971325, 26702279, 102479158, 393541270, 1511848952, 5810405859, 22336911663, 85879249631, 330208289450, 1269748921864, 4882763327280, 18776842367003, 72208138689837 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A301541.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A301541.

Sequence in context: A066859 A227653 A296198 * A192299 A080144 A241522

Adjacent sequences:  A301535 A301536 A301537 * A301539 A301540 A301541

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 23 2018

STATUS

approved

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Last modified October 18 03:25 EDT 2021. Contains 348065 sequences. (Running on oeis4.)