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A235069 Number of (n+1) X (6+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 1

%I #7 Jun 19 2022 23:38:57

%S 609412,3780180,24652260,181669172,1333866324,10169860740,77175918060,

%T 600121202116,4656911119264,36958692834244,293070526517544,

%U 2378338355980700,19284557903039056,160269112134068812

%N Number of (n+1) X (6+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

%H R. H. Hardin, <a href="/A235069/b235069.txt">Table of n, a(n) for n = 1..22</a>

%e Some solutions for n=1:

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

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

%Y Column 6 of A235071.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 03 2014

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Last modified April 19 09:23 EDT 2024. Contains 371782 sequences. (Running on oeis4.)