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Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1
1

%I #4 Apr 10 2015 13:32:46

%S 4690,55798,688353,8090191,95609517,1138136868,13512239171,

%T 160298389688,1902928304204,22590412601705,268141162733191,

%U 3182827104119933,37781089864549012,448467854628363649,5323365293380936886

%N Number of (n+2)X(6+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1

%C Column 6 of A256810

%H R. H. Hardin, <a href="/A256808/b256808.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%Y Cf. A256810

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 10 2015