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A279869 Number of nX5 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. 1

%I #4 Dec 21 2016 10:39:05

%S 6,255,3199,37289,389786,3786373,35086917,313383975,2722202345,

%T 23125021135,192903953186,1584994453962,12857492370098,

%U 103163663735209,819927701417438,6462788122534314,50569048938103665,393119079521861335

%N Number of nX5 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

%C Column 5 of A279871.

%H R. H. Hardin, <a href="/A279869/b279869.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A279871.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 21 2016

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Last modified April 19 02:04 EDT 2024. Contains 371782 sequences. (Running on oeis4.)