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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

%I

%S 9,35,199,1066,6019,32301,174400,944500,5142177,27937799,151639871,

%T 822991186,4468833656,24267873410,131775553922,715505284261,

%U 3885076657421,21095823631806,114549994256771,622001619001412

%N Number of 2Xn 0..2 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors

%C Row 2 of A232281

%H R. H. Hardin, <a href="/A232282/b232282.txt">Table of n, a(n) for n = 1..210</a>

%F 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)

%e Some solutions for n=7

%e ..0..2..2..2..0..0..0....0..2..1..1..0..2..0....0..0..0..2..0..0..0

%e ..2..0..0..0..1..0..2....2..0..0..0..2..0..2....0..2..1..0..1..2..2

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 22 2013

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Last modified October 5 09:00 EDT 2022. Contains 357252 sequences. (Running on oeis4.)