%I #3 Jun 28 2012 08:10:09
%S 176041978,34107691901433,261421322089741976,314911377440218697950,
%T 113762889909962601897876,17583943206407091985366455,
%U 1444750727564469383124521648
%N Number of 6X6 0..n matrices with row and column 1..6 having sum <= i*n
%C Row 6 of A213962
%e Some solutions for n=4
%e ..4..0..0..0..0..0....0..3..0..0..0..0....4..0..0..0..0..0....3..0..0..0..0..1
%e ..0..1..0..4..0..0....2..3..0..2..0..1....0..4..3..0..0..0....0..3..3..0..2..0
%e ..0..1..2..4..0..1....0..2..1..1..3..3....0..2..1..3..0..1....0..1..4..3..3..0
%e ..0..4..3..2..1..0....2..0..0..0..2..1....0..2..4..3..0..0....0..4..2..2..1..4
%e ..0..2..0..3..4..3....0..0..1..0..3..1....0..0..4..2..3..0....1..0..3..0..0..1
%e ..0..0..2..2..1..0....0..0..0..3..2..2....0..0..0..4..4..4....0..0..0..2..3..4
%K nonn
%O 1,1
%A _R. H. Hardin_ Jun 28 2012