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Number of (n+1) X (6+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
1

%I #7 Jun 19 2022 00:09:07

%S 662892,1374400,2971196,7402144,19043548,54586424,160144012,509661968,

%T 1652364332,5703493096,20024980332,73928222448,277519396348,

%U 1085935153432,4317710816028,17772543860160,74210752912412

%N Number of (n+1) X (6+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

%C Column 6 of A235212.

%H R. H. Hardin, <a href="/A235210/b235210.txt">Table of n, a(n) for n = 1..18</a>

%e Some solutions for n=1:

%e 2 4 1 5 1 3 0 2 6 3 2 1 2 1 2 4 2 0 4 0 7

%e 4 1 3 2 3 0 2 6 5 7 1 5 1 5 0 7 0 3 2 3 5

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 04 2014