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Number of (n+3)X(2+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum
1

%I #4 Jun 15 2015 12:27:18

%S 80000,213920,605904,1724976,4964896,14867112,44522440,134384448,

%T 410930808,1260815840,3895391352,12098662888,37721194992,118143270584,

%U 371262795592,1170540703680,3702141701352,11740406194384,37331111667992

%N Number of (n+3)X(2+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum

%C Column 2 of A258957

%H R. H. Hardin, <a href="/A258951/b258951.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

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

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

%Y Cf. A258957

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 15 2015