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 * A386368 A222383 A282312

Adjacent sequences: A183428 A183429 A183430 * A183432 A183433 A183434

Keyword

nonn

Author

R. H. Hardin, Jan 04 2011

Status

approved