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A269008 Number of nX5 binary arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once. 1
10, 88, 1078, 10976, 109058, 1053432, 10002542, 93733440, 869397882, 7996744280, 73044076454, 663272676512, 5992284643698, 53897945082104, 482908211678430, 4311837258739840, 38381936117267690, 340717648957870424 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A269011.

LINKS

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

FORMULA

Empirical: a(n) = 24*a(n-1) -198*a(n-2) +584*a(n-3) +137*a(n-4) -2864*a(n-5) +1132*a(n-6) +4336*a(n-7) -1391*a(n-8) -2280*a(n-9) +90*a(n-10) +200*a(n-11) -25*a(n-12)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A269011.

Sequence in context: A298134 A163030 A302149 * A000826 A282555 A120923

Adjacent sequences:  A269005 A269006 A269007 * A269009 A269010 A269011

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 17 2016

STATUS

approved

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Last modified July 11 08:50 EDT 2020. Contains 335626 sequences. (Running on oeis4.)