A204726 Number of (n+1)X3 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero

1624, 12744, 44726, 353626, 1425462, 10332706, 45388048, 307057212, 1435551124, 9233564740, 45214143964, 280355783930, 1421151419140, 8581104455222, 44642397960012, 264431250310716, 1402840195850906, 8195345840290280

Offset

1,1

Comments

Column 2 of A204732

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A347039 A224722 A045288 * A022060 A107524 A097225

Adjacent sequences: A204723 A204724 A204725 * A204727 A204728 A204729

Keyword

nonn

Author

R. H. Hardin Jan 18 2012

Status

approved