A197304 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,4,0,2,1 for x=0,1,2,3,4

5, 57, 344, 3181, 27709, 207538, 1711736, 14233577, 115744195, 943877937, 7722480242, 63119151256, 515801027829, 4215541002540, 34452043410657, 281566682942645, 2301175324848852, 18806797415174573, 153702262527792157

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 2's, every 4 is next to 4 1's

Column 5 of A197307

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A197454 A196340 A196319 * A000362 A196971 A197558

Adjacent sequences: A197301 A197302 A197303 * A197305 A197306 A197307

Keyword

nonn

Author

R. H. Hardin Oct 13 2011

Status

approved