A202632 Number of nX2 0..3 arrays with adjacent row and column sums unequal

12, 184, 2428, 32676, 443100, 5967248, 80018540, 1071819720, 14345548208, 191832756088, 2563434424352, 34237692810948, 457102551851688, 6100655850072092, 81398668652158260, 1085815517813680904

Offset

1,1

Comments

Column 2 of A202636

Links

R. H. Hardin, Table of n, a(n) for n = 1..68

Example

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

Crossrefs

Sequence in context: A332960 A230345 A166773 * A285410 A218886 A239294

Adjacent sequences: A202629 A202630 A202631 * A202633 A202634 A202635

Keyword

nonn

Author

R. H. Hardin Dec 21 2011

Status

approved