A197045 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,0,1,3 for x=0,1,2,3,4

8, 648, 24074, 855746, 31096170, 1146653592, 42346212260, 1557004531014, 57353100417462, 2112382332611192, 77779202686257778, 2864298209626136384, 105477500014169550206, 3884216011047782491710, 143037133564177615552516

Offset

1,1

Comments

Every 0 is next to 0 4'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 3's

Column 6 of A197047

Links

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

Example

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

Crossrefs

Sequence in context: A129927 A196800 A196588 * A258385 A352593 A267968

Adjacent sequences: A197042 A197043 A197044 * A197046 A197047 A197048

Keyword

nonn

Author

R. H. Hardin Oct 08 2011

Status

approved