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%I #5 Mar 31 2012 12:35:54
%S 11,31,31,88,129,88,251,542,542,251,717,2297,3357,2297,717,2050,9747,
%T 21068,21068,9747,2050,5863,41430,132152,197133,132152,41430,5863,
%U 16771,176119,831331,1839599,1839599,831331,176119,16771,47976,748937,5226955
%N T(n,k)=Number of (n+1)X(k+1) binary arrays with each element of every 2X2 subblock being the sum mod 2 of two others
%C Table starts
%C .....11.......31.........88..........251............717.............2050
%C .....31......129........542.........2297...........9747............41430
%C .....88......542.......3357........21068.........132152...........831331
%C ....251.....2297......21068.......197133........1839599.........17250758
%C ....717.....9747.....132152......1839599.......25468475........355075734
%C ...2050....41430.....831331.....17250758......355075734.......7377050305
%C ...5863...176119....5226955....161545837.....4937888557.....152705583143
%C ..16771...748937...32887826...1514840541....68813532021....3170254841114
%C ..47976..3184790..206882773..14197275248...958037081176...65722388742561
%C .137247.13544009.1301662324.133112213345.13347035945673.1363817555468924
%H R. H. Hardin, <a href="/A183845/b183845.txt">Table of n, a(n) for n = 1..364</a>
%e Some solutions for 4X3
%e ..1..0..1....0..1..0....1..1..0....1..1..0....0..1..1....1..1..1....1..1..0
%e ..1..1..1....0..1..0....0..1..1....0..1..0....1..0..0....1..0..0....0..1..0
%e ..0..0..0....0..1..0....1..1..0....0..1..0....0..1..1....1..1..1....1..1..0
%e ..0..0..0....1..1..0....0..0..1....1..1..1....0..1..0....0..0..0....0..1..1
%K nonn,tabl
%O 1,1
%A _R. H. Hardin_ Jan 07 2011
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