A204876 T(n,k) = Number of (n+1) X (k+1) 0..3 arrays with the permanents of all 2 X 2 subblocks equal and nonzero.

207, 551, 551, 1467, 3167, 1467, 4245, 10397, 10397, 4245, 12241, 59377, 53311, 59377, 12241, 36285, 219871, 337179, 337179, 219871, 36285, 107397, 1174669, 1912223, 4256141, 1912223, 1174669, 107397, 321317, 4655229, 11644559, 27234451

Offset

1,1

Comments

Table starts

....207......551......1467........4245........12241..........36285

....551.....3167.....10397.......59377.......219871........1174669

...1467....10397.....53311......337179......1912223.......11644559

...4245....59377....337179.....4256141.....27234451......320519921

..12241...219871...1912223....27234451....282748327.....3677014705

..36285..1174669..11644559...320519921...3677014705....94493071327

.107397..4655229..67916249..2202663919..41067117035..1170722541163

.321317.23670949.409180861.24594710265.514372854783.28674816027923

Links

R. H. Hardin, Table of n, a(n) for n = 1..180

Example

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

Crossrefs

Sequence in context: A045069 A199497 A179171 * A204869 A217297 A205198

Adjacent sequences: A204873 A204874 A204875 * A204877 A204878 A204879

Keyword

nonn,tabl

Author

R. H. Hardin, Jan 20 2012

Status

approved