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A297372 Number of nX6 0..1 arrays with every 1 horizontally or antidiagonally adjacent to 0, 1 or 2 neighboring 1s. 1
64, 2807, 116932, 4986469, 211988289, 9012089653, 383128155296, 16287817972455, 692439110062325, 29437457074856299, 1251465819161322185, 53203192507527858031, 2261811429397076122601, 96155713614199340990747 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A297374.

LINKS

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

FORMULA

Empirical: a(n) = 44*a(n-1) -56*a(n-2) -187*a(n-3) -5608*a(n-4) +21016*a(n-5) -3332*a(n-6) +4895*a(n-7) -116578*a(n-8) +68785*a(n-9) -21021*a(n-10) +27575*a(n-11) -9269*a(n-12) +5557*a(n-13) -1984*a(n-14) -691*a(n-15) -73*a(n-16) +16*a(n-17) for n>19

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A297374.

Sequence in context: A303518 A240483 A240635 * A283696 A283128 A295714

Adjacent sequences:  A297369 A297370 A297371 * A297373 A297374 A297375

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 29 2017

STATUS

approved

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Last modified February 18 04:48 EST 2020. Contains 332011 sequences. (Running on oeis4.)