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A280122 Number of nX6 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards. 1

%I

%S 14,252,2852,31608,330254,3348206,33510642,330506508,3241940520,

%T 31500155624,304370256664,2922696694266,27932620556714,

%U 265729171209766,2518249996762578,23780111570986516,223861001579411416

%N Number of nX6 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

%C Column 6 of A280124.

%H R. H. Hardin, <a href="/A280122/b280122.txt">Table of n, a(n) for n = 1..186</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A280124.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 26 2016

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Last modified September 25 08:41 EDT 2020. Contains 337335 sequences. (Running on oeis4.)