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%I #5 Mar 31 2012 12:35:53
%S 50,314,314,1970,4594,1970,12362,66658,66658,12362,77570,969978,
%T 2235330,969978,77570,486746,14100346,75166498,75166498,14100346,
%U 486746,3054290,205047906,2525447442,5848268518,2525447442,205047906,3054290,19165418
%N T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock nonsingular
%C Table starts
%C ........50...........314...............1970..................12362
%C .......314..........4594..............66658.................969978
%C ......1970.........66658............2235330...............75166498
%C .....12362........969978...........75166498.............5848268518
%C .....77570......14100346.........2525447442...........454422625582
%C ....486746.....205047906........84872526674.........35325040673626
%C ...3054290....2981428242......2852069116186.......2745624826054514
%C ..19165418...43352455562.....95843840904146.....213413389362873662
%C .120261410..630370287594...3220808030907306...16588019956268604926
%C .754630394.9166011482354.108234716039535994.1289347795300644331026
%H R. H. Hardin, <a href="/A183698/b183698.txt">Table of n, a(n) for n = 1..179</a>
%e Some solutions for 4X3
%e ..0..2..1....2..0..2....1..2..0....2..1..2....1..2..2....0..2..2....1..0..2
%e ..2..1..1....1..1..1....1..0..1....0..2..2....1..0..1....2..2..1....2..2..0
%e ..2..0..2....1..0..1....2..2..1....1..2..1....0..2..1....2..0..1....2..0..1
%e ..2..1..2....2..1..2....2..1..0....1..1..0....2..1..2....0..2..0....0..2..2
%K nonn,tabl
%O 1,1
%A _R. H. Hardin_ Jan 06 2011
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