A202715 Number of 3X3 0..n arrays with row sums equal and no column sum equal to the previous.

38, 624, 4740, 23036, 83994, 250668, 645968, 1487832, 3136542, 6155240, 11386212, 20043612, 33825674, 55046532, 86791272, 133093760, 199141470, 291506184, 418405556, 589993572, 818685762, 1119516332, 1510533960, 2013232464

Offset: 1

Author

R. H. Hardin Dec 23 2011

Keywords

• nonn

Comments

Row 3 of A202714

Examples

			Some solutions for n=5
..1..5..1....1..0..2....1..2..5....3..3..0....5..2..3....5..1..1....0..2..2
..1..3..3....1..1..1....4..1..3....3..1..2....3..5..2....4..0..3....3..1..0
..4..2..1....3..0..0....4..0..4....4..1..1....1..4..5....1..5..1....1..2..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..49