A196853 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,1,0,2,4 for x=0,1,2,3,4

12, 496, 8767, 199125, 4326720, 94652804, 2069281146, 45250654402, 989582452566, 21641093339471, 473258424515226, 10349412319177011, 226326014259354738, 4949414076598335496, 108236297594374361032, 2366965861351964408167

Offset

1,1

Comments

Every 0 is next to 0 3's, every 1 is next to 1 1's, every 2 is next to 2 0's, every 3 is next to 3 2's, every 4 is next to 4 4's

Column 5 of A196856

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A175322 A297651 A296596 * A196947 A220258 A220322

Adjacent sequences: A196850 A196851 A196852 * A196854 A196855 A196856

Keyword

nonn

Author

R. H. Hardin Oct 06 2011

Status

approved