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%I #5 Mar 31 2012 12:36:01
%S 64,424,424,2248,8272,2248,13096,108496,108496,13096,73288,1792144,
%T 1967440,1792144,73288,417256,27993232,62051344,62051344,27993232,
%U 417256,2358280,454774672,1444491280,4975179472,1444491280,454774672,2358280
%N T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock singular
%C Table starts
%C ........64............424..............2248.................13096
%C .......424...........8272............108496...............1792144
%C ......2248.........108496...........1967440..............62051344
%C .....13096........1792144..........62051344............4975179472
%C .....73288.......27993232........1444491280..........267277851856
%C ....417256......454774672.......39939558160........18492329456080
%C ...2358280.....7339536784.....1005763454224......1156853256240592
%C ..13370536...119205236368....26695990774288.....77441892454241488
%C ..75704776..1934859805840...688562611427344...5064538742140130512
%C .428889448.31437977902480.18047210235975952.336992694113719404496
%H R. H. Hardin, <a href="/A184773/b184773.txt">Table of n, a(n) for n = 1..127</a>
%e Some solutions for 4X3
%e ..1..0..3....2..0..3....2..2..0....1..2..2....0..0..1....2..2..1....2..1..1
%e ..3..0..3....2..0..1....0..0..0....0..0..0....3..0..3....0..0..0....2..1..1
%e ..2..0..2....0..0..3....3..0..0....3..0..1....3..0..2....2..0..1....0..0..0
%e ..2..0..1....1..0..1....1..0..1....2..0..0....2..0..3....3..0..3....2..3..1
%K nonn,tabl
%O 1,1
%A _R. H. Hardin_ Jan 21 2011