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Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum one
1

%I #4 Feb 14 2015 10:20:42

%S 418200,7070281,170527280,2916864064,60755627185,1389939607849,

%T 29652533456379,631682065157796,13873313158089840,301813198275078400,

%U 6529986007410270600,141995549130168315024,3088910037098708106544

%N Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum one

%C Column 7 of A255082

%H R. H. Hardin, <a href="/A255081/b255081.txt">Table of n, a(n) for n = 1..171</a>

%e Some solutions for n=1

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

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

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

%Y Cf. A255082

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 14 2015