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Number of (n+3)X(6+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum
1

%I #4 Jun 15 2015 12:30:02

%S 35887648,14867112,8889408,4910670,2593544,1910774,1416722,1288390,

%T 1218684,1472988,1657826,2046954,3062150,4719396,7324320,12856214,

%U 22718934,42565040,79923112,153227136,294719620,580320190,1139462866

%N Number of (n+3)X(6+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum

%C Column 6 of A258957

%H R. H. Hardin, <a href="/A258955/b258955.txt">Table of n, a(n) for n = 1..46</a>

%e Some solutions for n=1

%e ..0..0..0..0..0..1..0..0..0....0..0..0..0..0..1..0..0..0

%e ..0..0..0..1..0..1..1..1..0....0..0..0..1..1..0..0..1..1

%e ..1..0..0..1..0..1..1..1..0....1..0..0..1..1..0..0..0..1

%e ..0..0..0..0..0..1..0..0..0....0..1..0..0..1..1..0..1..1

%Y Cf. A258957

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 15 2015