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Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 3 neighboring 1s.
1

%I #4 Dec 11 2017 14:01:41

%S 9,139,1280,14502,159732,1740403,19142885,209776696,2301194495,

%T 25237251699,276785466405,3035734743763,33294250450804,

%U 365158264017369,4004894789690661,43923943237475449,481738909997954720

%N Number of nX6 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1 or 3 neighboring 1s.

%C Column 6 of A296396.

%H R. H. Hardin, <a href="/A296394/b296394.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A296396.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 11 2017