A204755 Number of (n+1)X(n+1) 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero

1175, 38553, 833401, 306477369, 27008204541, 88406706477089, 30627642821922195

Offset

1,1

Comments

Diagonal of A204763

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A204763 A204756 A027485 * A202199 A233870 A237774

Adjacent sequences: A204752 A204753 A204754 * A204756 A204757 A204758

Keyword

nonn

Author

R. H. Hardin Jan 18 2012

Status

approved