A197894 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,1 for x=0,1,2,3,4

8, 186, 3046, 46988, 821491, 13332946, 222339185, 3713421692, 61711530462, 1027520573185, 17105147307563, 284817237813288, 4741659653344637, 78929447412592761, 1314011586007609149, 21875424220837153422

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 1's

Column 6 of A197896

Links

R. H. Hardin, Table of n, a(n) for n = 1..207

Example

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

Crossrefs

Sequence in context: A049034 A092546 A227584 * A198011 A197748 A198153

Adjacent sequences: A197891 A197892 A197893 * A197895 A197896 A197897

Keyword

nonn

Author

R. H. Hardin Oct 19 2011

Status

approved