A203035 Number of 5 X n 0..3 arrays with row sums equal and column sums unequal to adjacent columns.

4, 1472, 578696, 315135868, 189412482924, 122284278712812

Offset

1,1

Comments

Row 5 of A203031.

Links

Table of n, a(n) for n=1..6.

Example

Some.solutions.for.n=5
..3..0..0..0..2....3..1..1..3..3....2..0..2..2..2....2..3..2..0..1
..3..0..0..1..1....0..2..3..3..3....3..0..3..2..0....2..2..0..1..3
..0..2..2..0..1....0..2..3..3..3....0..3..3..0..2....1..2..2..0..3
..2..2..1..0..0....3..1..1..3..3....1..0..1..3..3....3..2..2..1..0
..3..0..2..0..0....2..3..3..2..1....3..1..2..2..0....1..1..0..3..3

Crossrefs

Cf. A203031.

Sequence in context: A301576 A160088 A094546 * A030253 A278549 A229664

Adjacent sequences: A203032 A203033 A203034 * A203036 A203037 A203038

Keyword

nonn

Author

R. H. Hardin Dec 27 2011

Status

approved