A203496 Number of 6Xn 0..2 arrays with row sums equal and column sums unequal to adjacent columns

3, 676, 171068, 56438584, 20726134056, 8496020082856

Offset

1,1

Comments

Row 6 of A203491

Links

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

Example

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

Crossrefs

Sequence in context: A278316 A361072 A266639 * A308323 A276455 A231604

Adjacent sequences: A203493 A203494 A203495 * A203497 A203498 A203499

Keyword

nonn

Author

R. H. Hardin Jan 02 2012

Status

approved