A224632 - OEIS

%I #3 Apr 12 2013 08:53:17

%S 338635,187090,225179,245916,256100,261192,264100,326973,430055,

%T 553586,686661,824129,963797,1165618,1469816,1896847,2456254,3152394,

%U 3987498,5023727,6363433,8129436,10454151

%N Number of (n+5)X9 0..2 matrices with each 6X6 subblock idempotent

%C Column 4 of A224636

%e Some solutions for n=2

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 12 2013