A196650 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,4,0,2,1 for x=0,1,2,3,4

5, 57, 248, 1895, 15289, 97292, 689313, 4940279, 34729760, 244473481, 1723635527, 12148477662, 85660331405, 603874547091, 4256603908016, 30006134374525, 211527978688847, 1491144741896136, 10511616761223147, 74100223117032273

Offset

1,1

Comments

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

Column 5 of A196653

Links

R. H. Hardin, Table of n, a(n) for n = 1..220

Example

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

Crossrefs

Sequence in context: A163793 A226425 A076455 * A197454 A196340 A196319

Adjacent sequences: A196647 A196648 A196649 * A196651 A196652 A196653

Keyword

nonn

Author

R. H. Hardin Oct 04 2011

Status

approved