A257268 - OEIS

A257268

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

%I #4 Apr 19 2015 11:13:43

%S 1257600,29746116,358153488,4497848356,39749497116,360292859536,

%T 2681201402880,20280611560000,136546079823132,928066750499344,

%U 5889856685235160,37580052583485504,230454199018052812

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

%C Column 3 of A257270

%H R. H. Hardin, <a href="/A257268/b257268.txt">Table of n, a(n) for n = 1..47</a>

%e Some solutions for n=1

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

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

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

%Y Cf. A257270

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 19 2015