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A234455 Number of (n+1)X(4+1) 0..5 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant stress 1X1 tilings) 1

%I

%S 192960,6049248,207310120,7432565004,272404175456,10112283614188,

%T 377695247179700,14168309891795076,532341726397811068,

%U 20038937366037061360,754496816963042860868,28439800055132805462404

%N Number of (n+1)X(4+1) 0..5 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant stress 1X1 tilings)

%C Column 4 of A234458

%H R. H. Hardin, <a href="/A234455/b234455.txt">Table of n, a(n) for n = 1..98</a>

%e Some solutions for n=1

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 26 2013

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Last modified January 27 21:25 EST 2022. Contains 350654 sequences. (Running on oeis4.)