A204872 Number of (n+1)X5 0..3 arrays with the permanents of all 2X2 subblocks equal and nonzero

4245, 59377, 337179, 4256141, 27234451, 320519921, 2202663919, 24594710265, 178262716197, 1908403361999, 14428513045669, 149296331841799, 1167961003297865, 11758011950915007, 94576473600785487, 931361805008041727

Offset

1,1

Comments

Column 4 of A204876

Links

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

Example

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

Crossrefs

Sequence in context: A108007 A254880 A184684 * A204638 A205995 A237805

Adjacent sequences: A204869 A204870 A204871 * A204873 A204874 A204875

Keyword

nonn

Author

R. H. Hardin Jan 20 2012

Status

approved