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A234546 Number of (n+1) X (4+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings). 1

%I #6 Jun 20 2022 19:37:39

%S 41112,222988,1207448,6556488,35656244,194284128,1060310544,

%T 5797286912,31746284736,174153656188,956820801344,5265969815936,

%U 29024714267936,160245956598088,885998584310788,4906702313505072,27211938895563816

%N Number of (n+1) X (4+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

%H R. H. Hardin, <a href="/A234546/b234546.txt">Table of n, a(n) for n = 1..144</a>

%e Some solutions for n=1:

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

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

%Y Column 4 of A234549.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 28 2013

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Last modified April 24 16:49 EDT 2024. Contains 371962 sequences. (Running on oeis4.)