A204790 Number of (n+1)X8 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero

11333145, 4471465369, 83984193841, 23045110901481, 699103684825857

Offset

1,1

Comments

Column 7 of A204791

Links

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

Example

Some solutions for n=4
..7..6..5..6..7..3..7..6....7..3..1..0..1..3..5..3....2..4..1..6..4..0..4..0
..0..6..2..6..0..6..0..6....1..0..1..3..1..0..1..0....0..4..1..2..0..2..5..2
..7..6..5..6..7..3..7..2....5..3..1..0..1..3..0..3....2..4..1..6..4..0..4..0
..0..6..2..6..0..6..0..6....1..0..1..3..0..3..1..3....0..4..1..2..0..2..5..2
..7..3..6..3..7..0..7..1....2..3..0..3..1..3..0..3....2..4..1..6..4..0..4..0

Crossrefs

Sequence in context: A186090 A233847 A069341 * A183826 A323331 A072142

Adjacent sequences: A204787 A204788 A204789 * A204791 A204792 A204793

Keyword

nonn

Author

R. H. Hardin Jan 19 2012

Status

approved