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

1,1

Comments

Row 3 of A202714

Links

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

Example

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

Crossrefs

Sequence in context: A159784 A243820 A268765 * A094034 A020931 A089271

Adjacent sequences: A202712 A202713 A202714 * A202716 A202717 A202718

Keyword

nonn

Author

R. H. Hardin Dec 23 2011

Status

approved