A196335 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,3,1,2 for x=0,1,2,3,4

12, 62, 259, 3246, 25295, 237905, 1783508, 14742650, 131257701, 1161104389, 9477920113, 79981857183, 698216221745, 5973531188672, 50458097968498, 431717763820004, 3722514631710593, 31795825068196111, 270678277789108068

Offset

1,1

Comments

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

Column 6 of A196337

Links

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

Example

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

Crossrefs

Sequence in context: A194487 A196312 A196285 * A349159 A092224 A335252

Adjacent sequences: A196332 A196333 A196334 * A196336 A196337 A196338

Keyword

nonn

Author

R. H. Hardin Oct 01 2011

Status

approved