A204788 Number of (n+1)X6 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero.

688431, 59657161, 708088685, 41778004243, 720594943717, 32915600155409, 699103684825857, 27409969099764031, 657930562520525815, 23569034319280896259, 608369271192524430611, 20662110174340562886959

Offset

1,1

Comments

Column 5 of A204791

Links

R. H. Hardin, Table of n, a(n) for n = 1..14

Example

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

Crossrefs

Sequence in context: A205280 A185922 A353345 * A254773 A254780 A254726

Adjacent sequences: A204785 A204786 A204787 * A204789 A204790 A204791

Keyword

nonn

Author

R. H. Hardin, Jan 19 2012

Status

approved