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A298180 Number of nX5 0..1 arrays with every element equal to 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero. 1
0, 3, 3, 6, 15, 27, 54, 117, 237, 508, 1073, 2261, 4852, 10375, 22175, 47602, 102187, 219583, 472170, 1015449, 2185065, 4703176, 10124077, 21797129, 46934664, 101069563, 217658203, 468756814, 1009568519, 2174384483, 4683219582 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 5 of A298183.

LINKS

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

FORMULA

Empirical: a(n) = 2*a(n-1) +a(n-2) +a(n-3) -2*a(n-4) -5*a(n-5) -6*a(n-6) -4*a(n-7) +14*a(n-8) +6*a(n-9) -2*a(n-10)

EXAMPLE

Some solutions for n=7

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

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

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

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

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

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

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

CROSSREFS

Cf. A298183.

Sequence in context: A092370 A245796 A006807 * A119460 A095356 A123104

Adjacent sequences:  A298177 A298178 A298179 * A298181 A298182 A298183

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 14 2018

STATUS

approved

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Last modified June 16 14:05 EDT 2021. Contains 345057 sequences. (Running on oeis4.)