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A326100 Number of nX3 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
4, 29, 161, 929, 5383, 31236, 181227, 1051456, 6100399, 35393679, 205349281, 1191408438, 6912388772, 40104734047, 232682180647, 1349990181408, 7832458355125, 45442851903417, 263653210203742, 1529679858088141 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A326105.

LINKS

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

FORMULA

Empirical: a(n) = 5*a(n-1) +5*a(n-2) -2*a(n-3) -3*a(n-6) -2*a(n-7) -a(n-8) -a(n-9)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A326105.

Sequence in context: A302960 A273300 A300467 * A273209 A273271 A200069

Adjacent sequences:  A326097 A326098 A326099 * A326101 A326102 A326103

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jun 06 2019

STATUS

approved

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Last modified May 21 11:28 EDT 2022. Contains 353908 sequences. (Running on oeis4.)