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A234400 Number of (n+1)X(1+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12 1

%I

%S 432,5646,66806,829594,10158894,125160846,1539127906,18941648974,

%T 233051484674,2867671002026,35285174854854,434171029131638,

%U 5342290306236582,65734726289230182,808838805043145334

%N Number of (n+1)X(1+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 12

%C Column 1 of A234405

%H R. H. Hardin, <a href="/A234400/b234400.txt">Table of n, a(n) for n = 1..210</a>

%F Empirical: a(n) = 13*a(n-1) +33*a(n-2) -544*a(n-3) -162*a(n-4) +7372*a(n-5) -2717*a(n-6) -33870*a(n-7) +18799*a(n-8) +19183*a(n-9) -2790*a(n-10) -1716*a(n-11)

%e Some solutions for n=3

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 25 2013

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Last modified August 12 23:52 EDT 2022. Contains 356077 sequences. (Running on oeis4.)