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Number of (n+1) X (5+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 #9 Jul 28 2022 20:07:49

%S 135520,319156,781040,2154516,6122960,19043548,60655008,207093844,

%T 721977376,2659371660,9986541664,39209154564,156677348816,

%U 649143433868,2730556362224,11825502544564,51835904542160,232551175826492

%N Number of (n+1) X (5+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 5 of A235212.

%H R. H. Hardin, <a href="/A235209/b235209.txt">Table of n, a(n) for n = 1..42</a>

%e Some solutions for n=1:

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

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

%Y Cf. A235212.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 04 2014