A196588 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,2,0,1,4 for x=0,1,2,3,4

8, 648, 24032, 839370, 29573040, 1051645368, 37529013812, 1334022464052, 47492318713306, 1690727011393186, 60171492901857682, 2141772804448431736, 76233239090665487626, 2713397484827660769804, 96579722219372717289244

Offset

1,1

Comments

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

Column 6 of A196590

Links

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

Example

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

Crossrefs

Sequence in context: A027877 A129927 A196800 * A197045 A258385 A352593

Adjacent sequences: A196585 A196586 A196587 * A196589 A196590 A196591

Keyword

nonn

Author

R. H. Hardin Oct 04 2011

Status

approved