A197096 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,0,0,1 for x=0,1,2,3,4

8, 484, 9274, 259856, 6929744, 183439730, 4886330995, 129901784708, 3454992362269, 91881627486594, 2443544908738875, 64984869174255048, 1728236147537632767, 45961525529160717907, 1222321979162332900054

Offset

1,1

Comments

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

Column 6 of A197098

Links

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

Example

Some solutions containing all values 0 to 4 for n=4
..0..0..0..0..1..0....2..0..0..0..0..0....0..0..3..0..3..0....0..0..0..0..0..2
..2..2..0..1..4..1....0..1..0..0..0..0....0..3..0..1..0..0....0..0..2..1..0..0
..0..3..0..0..1..0....1..4..1..3..0..0....0..2..1..4..1..0....0..3..1..4..1..0
..0..0..0..0..2..0....0..1..0..0..0..0....0..0..0..1..0..0....2..0..0..1..0..2

Crossrefs

Sequence in context: A210117 A204564 A152495 * A332148 A109060 A259926

Adjacent sequences: A197093 A197094 A197095 * A197097 A197098 A197099

Keyword

nonn

Author

R. H. Hardin Oct 10 2011

Status

approved