A197747 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,0 for x=0,1,2,3,4

5, 79, 921, 9499, 115795, 1345639, 15943658, 189654699, 2233388582, 26384576019, 311889887397, 3684879253441, 43551918669270, 514650532034112, 6081348725134877, 71864666895246523, 849224348337144245

Offset

1,1

Comments

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

Column 5 of A197750

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
..1..3..1..2..0....0..2..1..3..1....1..0..0..0..0....0..1..3..1..0
..0..1..0..0..0....0..0..2..1..0....3..1..0..4..0....2..0..1..0..0
..0..0..0..4..0....0..4..0..0..0....1..2..0..0..0....2..0..0..4..0
..0..2..2..0..0....2..0..0..0..2....0..0..0..0..2....0..0..0..0..2

Crossrefs

Sequence in context: A200986 A197893 A198010 * A198152 A197232 A152297

Adjacent sequences: A197744 A197745 A197746 * A197748 A197749 A197750

Keyword

nonn

Author

R. H. Hardin Oct 17 2011

Status

approved