A204786 Number of (n+1)X4 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero.

44641, 793645, 5719981, 78694139, 708088685, 8567876319, 83984193841, 962997162651, 9813730640761, 109872686433517, 1141540082437751, 12639021064159207, 132727790537865509, 1461507197066363903

Offset

1,1

Comments

Column 3 of A204791

Links

R. H. Hardin, Table of n, a(n) for n = 1..98

Example

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

Crossrefs

Sequence in context: A295480 A206166 A206380 * A248066 A252147 A225814

Adjacent sequences: A204783 A204784 A204785 * A204787 A204788 A204789

Keyword

nonn

Author

R. H. Hardin, Jan 19 2012

Status

approved