A204728 Number of (n+1)X5 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero

15688, 353626, 2122560, 45026614, 304649012, 6063334774, 44356355508, 831511885930, 6485389220808, 115070312319692, 948444994398864, 16019519036868662, 138571010386295858, 2240817100121115226

Offset

1,1

Comments

Column 4 of A204732

Links

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

Example

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

Crossrefs

Sequence in context: A075050 A134121 A177949 * A298758 A205289 A205897

Adjacent sequences: A204725 A204726 A204727 * A204729 A204730 A204731

Keyword

nonn

Author

R. H. Hardin Jan 18 2012

Status

approved