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A269219 Number of 6Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once. 1

%I

%S 0,889056,118872576,17118725376,2267772823680,292321215814512,

%T 36713945487331392,4528086446983948224,550465224463202188320,

%U 66156064863501806179776,7876627077577027391888640

%N Number of 6Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.

%C Row 6 of A269214.

%H R. H. Hardin, <a href="/A269219/b269219.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

%e ..0..1. .2..3. .0..1. .0..2. .0..0. .0..2. .0..2. .0..1. .0..0. .0..0

%e ..3..1. .3..2. .1..1. .3..2. .3..1. .2..0. .2..2. .3..2. .2..3. .0..2

%e ..3..3. .2..2. .1..3. .3..3. .0..2. .2..2. .3..2. .0..3. .2..0. .3..0

%e ..2..3. .2..0. .2..1. .1..2. .0..1. .1..0. .3..1. .3..1. .0..0. .2..3

%e ..3..0. .1..3. .3..2. .2..3. .3..2. .1..1. .0..0. .3..3. .0..2. .3..2

%Y Cf. A269214.

%K nonn

%O 1,2

%A _R. H. Hardin_, Feb 20 2016

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Last modified July 22 05:47 EDT 2019. Contains 325213 sequences. (Running on oeis4.)