A197610 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,1,1,1 for x=0,1,2,3,4

4, 124, 1840, 33484, 545364, 9128940, 153043371, 2556879780, 42705555374, 714332556250, 11946178545054, 199712785881590, 3338964219686634, 55828949963800871, 933460561222027948, 15606952873472092322

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

Column 5 of A197613

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

Crossrefs

Sequence in context: A005936 A241648 A197779 * A090082 A243010 A343427

Adjacent sequences: A197607 A197608 A197609 * A197611 A197612 A197613

Keyword

nonn

Author

R. H. Hardin Oct 16 2011

Status

approved