A258563 - OEIS

A258563

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

%I #4 Jun 03 2015 09:47:41

%S 2826448,134652816,6542200832,321924603456,15675466093600,

%T 760019986771600,36965855603605520,1800899434274691136,

%U 87647514765019632320,4262811582955736779024,207402816350361451622688

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

%C Column 3 of A258564

%H R. H. Hardin, <a href="/A258563/b258563.txt">Table of n, a(n) for n = 1..21</a>

%e Some solutions for n=1

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

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

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

%Y Cf. A258564

%K nonn

%O 1,1

%A _R. H. Hardin_, Jun 03 2015