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

%I #4 Apr 09 2015 12:34:27

%S 12865280,1047687424,65927512064,4910514177024,337855448236032,

%T 23679083944969216,1660456237166444544,116231639047144574976,

%U 8123935526478378696704,568293011012555646713856

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

%C Column 7 of A256735

%H R. H. Hardin, <a href="/A256734/b256734.txt">Table of n, a(n) for n = 1..124</a>

%e Some solutions for n=1

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

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

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

%Y Cf. A256735

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 09 2015