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%I #4 Feb 18 2016 09:05:06
%S 0,25272,357756,8277072,159397596,3266423688,63310818360,
%T 1232016734502,23480085224460,445037745455958,8347562556153996,
%U 155656709783860410,2883687582601214532,53163977044543395168,975616567564729165860
%N Number of 7Xn 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
%C Row 7 of A269035.
%H R. H. Hardin, <a href="/A269041/b269041.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A269041/a269041.txt">Empirical recurrence of order 92</a>
%F Empirical recurrence of order 92 (see link above)
%e Some solutions for n=2
%e ..0..0. .1..2. .2..2. .0..0. .1..2. .1..0. .1..0. .1..2. .1..0. .2..2
%e ..1..1. .1..2. .2..1. .1..0. .2..2. .0..2. .1..0. .1..0. .1..0. .2..1
%e ..2..2. .1..0. .0..1. .1..2. .2..1. .1..0. .0..0. .1..2. .2..2. .0..1
%e ..2..1. .0..1. .0..0. .2..0. .0..2. .1..2. .1..2. .2..2. .2..2. .2..1
%e ..2..2. .0..1. .0..0. .1..2. .2..1. .1..0. .1..0. .1..0. .2..1. .1..2
%e ..2..1. .0..1. .1..0. .2..2. .2..2. .1..2. .0..0. .1..2. .2..2. .1..0
%e ..2..1. .0..1. .2..2. .2..1. .2..2. .1..0. .0..1. .2..2. .2..2. .0..0
%Y Cf. A269035.
%K nonn
%O 1,2
%A _R. H. Hardin_, Feb 18 2016
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