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A234996 Number of (n+1) X (5+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 1

%I #6 Jun 20 2022 01:33:48

%S 196148,1687256,16100096,208674708,2873152132,44177186020,

%T 691899662624,11285218344244,185169976707148,3102397497213456,

%U 52159540083531748,889922884389534672,15233398956425568880,263888147715414313324

%N Number of (n+1) X (5+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

%H R. H. Hardin, <a href="/A234996/b234996.txt">Table of n, a(n) for n = 1..45</a>

%e Some solutions for n=1:

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

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

%Y Column 5 of A234998.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 02 2014

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Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)