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Number of (n+2)X(3+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum
1

%I #4 Apr 14 2015 12:05:03

%S 6508512,717382656,82198167552,9418319069184,1067360882688000,

%T 120962057616000000,13755268072643328000,1564188006382373965824,

%U 177670834801998001035264,20181030292033938199471104

%N Number of (n+2)X(3+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum

%C Column 3 of A257017

%H R. H. Hardin, <a href="/A257016/b257016.txt">Table of n, a(n) for n = 1..96</a>

%e Some solutions for n=1

%e ..0..0..0..1..1....0..0..0..0..1....0..0..0..0..2....0..0..0..1..1

%e ..0..2..0..0..0....1..2..1..0..2....2..0..2..1..0....1..1..2..0..2

%e ..0..2..1..0..0....2..0..1..2..1....2..0..1..2..0....0..1..1..0..1

%Y Cf. A257017

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 14 2015