A205045 Number of (n+1)X8 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero

5692570, 1279810940, 24602390018, 4053347144228, 119606241141244, 15032648681652406

Offset

1,1

Comments

Column 7 of A205046

Links

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

Example

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

Crossrefs

Sequence in context: A253983 A246055 A210353 * A139064 A151655 A283445

Adjacent sequences: A205042 A205043 A205044 * A205046 A205047 A205048

Keyword

nonn

Author

R. H. Hardin Jan 21 2012

Status

approved