A252949 - OEIS

A252949

Number of (n+2)X(5+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order

%I #4 Dec 25 2014 07:04:38

%S 48024,262494,1784781,13646115,110574774,919418760,7763464440,

%T 66003601788,563165929260,4814005980501,41185929329001,

%U 352531934350965,3018217684914378,25843545938825991,221299439996922372

%N Number of (n+2)X(5+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order

%C Column 5 of A252952

%H R. H. Hardin, <a href="/A252949/b252949.txt">Table of n, a(n) for n = 1..58</a>

%e Some solutions for n=1

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 25 2014