A241288 Number of 6Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4

132, 532, 12356, 77955, 309657, 15616828, 60486552, 1053647507, 8994144991, 39245305813

Offset

1,1

Comments

Row 6 of A241283

Links

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

Example

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

Crossrefs

Sequence in context: A253502 A257105 A204834 * A115132 A158543 A156958

Adjacent sequences: A241285 A241286 A241287 * A241289 A241290 A241291

Keyword

nonn

Author

R. H. Hardin, Apr 18 2014

Status

approved