A196320 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 1,3,0,2,4 for x=0,1,2,3,4

8, 122, 978, 10934, 120633, 1313940, 14115912, 152443404, 1650437009, 17857068383, 193153331352, 2089258276140, 22599245898201, 244449395062206, 2644153063876181, 28601431700083432, 309377294235234987

Offset

1,1

Comments

Every 0 is next to 0 1's, every 1 is next to 1 3'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 6 of A196322

Links

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

Example

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

Crossrefs

Sequence in context: A196651 A197456 A196341 * A197305 A196972 A197559

Adjacent sequences: A196317 A196318 A196319 * A196321 A196322 A196323

Keyword

nonn

Author

R. H. Hardin Oct 01 2011

Status

approved