A203030 Number of nX6 0..3 arrays with row sums equal and column sums unequal to adjacent columns

972, 690204, 396419436, 219705087676, 122284278712812

Offset

1,1

Comments

Column 6 of A203031

Links

Table of n, a(n) for n=1..5.

Example

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

Crossrefs

Sequence in context: A217162 A203375 A183359 * A209045 A209017 A232409

Adjacent sequences: A203027 A203028 A203029 * A203031 A203032 A203033

Keyword

nonn

Author

R. H. Hardin Dec 27 2011

Status

approved