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%I #5 Mar 31 2012 12:37:32
%S 57,820,820,11783,42689,11783,169343,2219034,2219034,169343,2433709,
%T 115368738,417014920,115368738,2433709,34976109,5997955680,
%U 78387305947,78387305947,5997955680,34976109,502659771,311831135649,14734218092801
%N T(n,k)=1/4 the number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one, three or four distinct clockwise edge differences
%C Table starts
%C .........57.............820................11783.....................169343
%C ........820...........42689..............2219034..................115368738
%C ......11783.........2219034............417014920................78387305947
%C .....169343.......115368738..........78387305947.............53276322556234
%C ....2433709......5997955680.......14734218092801..........36208249913281496
%C ...34976109....311831135649.....2769555432882273.......24608360596681275093
%C ..502659771..16211961522199...520586406508252346....16724671741551847807857
%C .7223984325.842852674077118.97853330660544192224.11366651677032505181918785
%H R. H. Hardin, <a href="/A210156/b210156.txt">Table of n, a(n) for n = 1..180</a>
%e Some solutions for n=4 k=3
%e ..0..0..1..0....1..0..0..0....1..1..1..3....2..0..3..0....3..2..0..1
%e ..0..1..1..3....0..3..1..2....3..3..2..0....2..0..3..1....0..3..3..1
%e ..3..0..3..2....1..0..1..3....0..2..2..1....1..2..0..2....3..2..2..1
%e ..1..3..2..2....1..3..3..2....3..1..0..0....0..2..0..3....1..2..2..0
%e ..1..1..0..3....1..3..0..2....1..0..2..3....2..2..1..3....1..3..1..3
%K nonn,tabl
%O 1,1
%A _R. H. Hardin_ Mar 18 2012
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