A183431 One third the number of nX3 0..3 arrays with no element equal to its row sum plus its column sum mod 4

16, 244, 7344, 178608, 4969216, 131801024, 3605232384, 97771510528, 2670568124416, 72893977058304

Offset

1,1

Comments

Column 3 of A183433

Links

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

Example

Some solutions for 5X3
..0..0..2....0..0..2....0..0..2....0..0..0....0..0..2....0..0..0....0..0..2
..0..1..3....0..2..0....0..0..0....0..0..0....0..0..2....0..2..1....0..1..3
..3..0..0....1..3..1....1..3..1....2..3..0....1..1..1....2..1..3....2..2..0
..3..2..2....0..2..2....2..2..2....0..2..2....0..2..3....2..0..3....0..1..1
..3..1..3....2..0..2....0..0..2....1..0..3....0..1..1....3..3..0....3..0..0

Crossrefs

Sequence in context: A304170 A360353 A217635 * A222383 A282312 A110394

Adjacent sequences: A183428 A183429 A183430 * A183432 A183433 A183434

Keyword

nonn

Author

R. H. Hardin Jan 04 2011

Status

approved