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A234331 Number of (n+1) X (6+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings). 1

%I #6 Jun 19 2022 02:38:09

%S 397056,12713312,425662432,14698619604,508700005648,17748461638244,

%T 617580751794644,21603778650646796,753131400252014904,

%U 26388038890028262520,921179431749476482344,32324717199948335180560

%N Number of (n+1) X (6+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings).

%H R. H. Hardin, <a href="/A234331/b234331.txt">Table of n, a(n) for n = 1..61</a>

%e Some solutions for n=1:

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

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

%Y Column 6 of A234333.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 23 2013

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Last modified April 26 11:23 EDT 2024. Contains 371997 sequences. (Running on oeis4.)