A197779 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,2,1,1,1 for x=0,1,2,3,4

4, 124, 1646, 25962, 384758, 5833286, 88309448, 1329981026, 20064521716, 303052845328, 4574664964317, 69036523371066, 1042057567199143, 15729900331335344, 237425764865409042, 3583655555859630532

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 1's, every 3 is next to 3 1's, every 4 is next to 4 1's

Column 5 of A197782

Links

R. H. Hardin, Table of n, a(n) for n = 1..201

Example

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

Crossrefs

Sequence in context: A232592 A005936 A241648 * A197610 A090082 A243010

Adjacent sequences: A197776 A197777 A197778 * A197780 A197781 A197782

Keyword

nonn

Author

R. H. Hardin Oct 18 2011

Status

approved