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A232282 Number of 2Xn 0..2 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors 1
9, 35, 199, 1066, 6019, 32301, 174400, 944500, 5142177, 27937799, 151639871, 822991186, 4468833656, 24267873410, 131775553922, 715505284261, 3885076657421, 21095823631806, 114549994256771, 622001619001412 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A232281

LINKS

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

FORMULA

Empirical: a(n) = 9*a(n-1) -23*a(n-2) +20*a(n-3) +81*a(n-4) -511*a(n-5) +294*a(n-6) +150*a(n-7) -168*a(n-8) +1692*a(n-9) +432*a(n-10)

EXAMPLE

Some solutions for n=7

..0..2..2..2..0..0..0....0..2..1..1..0..2..0....0..0..0..2..0..0..0

..2..0..0..0..1..0..2....2..0..0..0..2..0..2....0..2..1..0..1..2..2

CROSSREFS

Sequence in context: A118414 A279218 A322239 * A271425 A267081 A020297

Adjacent sequences:  A232279 A232280 A232281 * A232283 A232284 A232285

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 22 2013

STATUS

approved

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Last modified August 16 11:28 EDT 2022. Contains 356168 sequences. (Running on oeis4.)