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Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.
1

%I #4 Jan 03 2018 12:26:42

%S 21,436,4277,60904,858645,11111767,150761147,2038941780,27303620184,

%T 367842469735,4952417047434,66600678642445,896344471370201,

%U 12062060639311458,162297592195716978,2183962016833905594

%N Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.

%C Column 6 of A297694.

%H R. H. Hardin, <a href="/A297692/b297692.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%Y Cf. A297694.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 03 2018