A202683 Number of nX5 0..3 arrays with row sums equal and column sums equal

4, 104, 6784, 389704, 290838284, 1901127404, 143872363604, 11292985987784, 911772753852904, 5229408282126363304

Offset

1,1

Comments

Column 5 of A202686

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A024262 A012958 A012984 * A013114 A281430 A354174

Adjacent sequences: A202680 A202681 A202682 * A202684 A202685 A202686

Keyword

nonn

Author

R. H. Hardin Dec 22 2011

Status

approved