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A235174 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 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 0

%I

%S 1603344,7533616,35209872,166600788,790073988,3773616876,18074063004,

%T 87109748012,420922099064,2045869493268,9967014218496,48826742512152

%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 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

%e Some solutions for n=1:

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

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

%Y Column 6 of A235175.

%K nonn,changed

%O 1,1

%A _R. H. Hardin_, Jan 04 2014

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Last modified July 2 21:48 EDT 2022. Contains 355029 sequences. (Running on oeis4.)