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A235105 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 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 1

%I #7 Jun 19 2022 20:20:46

%S 236496,523532,1201872,2978124,7614452,20552136,57035088,165182704,

%T 490588960,1509762708,4755375684,15442715664,51249301928,174685145432,

%U 607655794872,2164160490812,7854511637236,29102005370312,109687007091232

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

%H R. H. Hardin, <a href="/A235105/b235105.txt">Table of n, a(n) for n = 1..30</a>

%e Some solutions for n=1:

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

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

%Y Column 6 of A235107.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 03 2014

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)