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Number of (n+1)X(5+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11
1

%I #4 Dec 21 2013 09:28:22

%S 21888,190188,1493960,14743812,125726800,1394066584,12541330624,

%T 154402398572,1438786785176,19244558737744,183210923326256,

%U 2597656835153796,25034628119721584,368569562306157536

%N Number of (n+1)X(5+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11

%C Column 5 of A234217

%H R. H. Hardin, <a href="/A234214/b234214.txt">Table of n, a(n) for n = 1..203</a>

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 21 2013