A204791 T(n,k)=Number of (n+1)X(k+1) 0..7 arrays with the permanents of all 2X2 subblocks equal and nonzero

3871, 13555, 13555, 44641, 224843, 44641, 180069, 793645, 793645, 180069, 688431, 14627079, 5719981, 14627079, 688431, 2831919, 59657161, 78694139, 78694139, 59657161, 2831919, 11333145, 986079019, 708088685, 7174463023, 708088685

Offset

1,1

Comments

Table starts

.....3871.......13555........44641.........180069.........688431........2831919

....13555......224843.......793645.......14627079.......59657161......986079019

....44641......793645......5719981.......78694139......708088685.....8567876319

...180069....14627079.....78694139.....7174463023....41778004243..3696936217731

...688431....59657161....708088685....41778004243...720594943717.32915600155409

..2831919...986079019...8567876319..3696936217731.32915600155409

.11333145..4471465369..83984193841.23045110901481

.46809649.66978872631.962997162651

Links

R. H. Hardin, Table of n, a(n) for n = 1..60

Example

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

Crossrefs

Sequence in context: A068267 A205409 A103117 * A204784 A204783 A035898

Adjacent sequences: A204788 A204789 A204790 * A204792 A204793 A204794

Keyword

nonn,tabl

Author

R. H. Hardin, Jan 19 2012

Status

approved