A219477 - OEIS

%I #3 Nov 20 2012 16:45:25

%S 120,3259,982456,208345624,37552353044,5432184254977,664221777830589

%N Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 7Xn array

%C Row 7 of A219471

%e Some solutions for n=3

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

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

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

%e ..2..0..0....2..2..3....1..0..0....1..1..1....1..1..2....0..0..0....0..0..0

%e ..0..0..0....2..2..1....1..0..0....1..1..1....2..2..3....0..0..3....0..0..3

%e ..0..0..0....1..1..1....2..0..1....1..1..1....3..1..1....2..1..1....0..0..3

%e ..0..3..3....1..3..3....3..1..1....1..2..3....3..1..2....2..0..0....1..1..2

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 20 2012