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A234447 Number of (n+1) X (4+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings). 1

%I

%S 58720,1377422,34601928,898985624,23647980136,627437990794,

%T 16674841633492,444755926154674,11853880524355808,316752410636964012,

%U 8452634047709216624,226106339577862820806,6038837815573273390480

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

%H R. H. Hardin, <a href="/A234447/b234447.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1:

%e 0 1 0 0 0 1 3 3 2 3 3 0 2 3 2 2 2 2 0 2

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

%Y Column 4 of A234450.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 26 2013

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Last modified February 3 23:01 EST 2023. Contains 360045 sequences. (Running on oeis4.)