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A234189 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 (constant-stress 1 X 1 tilings). 1

%I #6 Jun 19 2022 01:58:20

%S 2802904,83845322,2571461348,80718738808,2520220543472,79661836246626,

%T 2500240291930760,79390219771938514,2502305309747766608,

%U 79827367794939162180,2526900718593524205516,81013829611539694057770

%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 (constant-stress 1 X 1 tilings).

%H R. H. Hardin, <a href="/A234189/b234189.txt">Table of n, a(n) for n = 1..14</a>

%e Some solutions for n=1:

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

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

%Y Column 5 of A234190.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 20 2013

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Last modified April 27 08:58 EDT 2024. Contains 372017 sequences. (Running on oeis4.)