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A197278
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4
1
16, 134, 888, 11850, 114205, 1276986, 13500114, 135563958, 1464662469, 15975572837, 167590942240, 1768832921236, 19029812782209, 203511535493020, 2157669619156227, 22971322152723986, 245668877166018309
OFFSET
1,1
COMMENTS
Every 0 is next to 0 2's, every 1 is next to 1 0'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 6 of A197280
LINKS
EXAMPLE
Some solutions containing all values 0 to 4 for n=4
..2..1..0..1..1..0....2..1..0..0..0..0....2..1..0..0..0..1....0..0..0..0..1..2
..1..4..1..1..3..0....1..4..1..1..3..1....1..4..1..1..3..1....1..3..1..1..4..1
..0..1..3..0..1..1....0..1..2..3..1..1....0..1..4..1..1..0....3..1..1..3..1..0
..1..3..1..0..1..2....0..1..2..1..0..0....0..1..1..0..1..1....1..0..0..0..1..1
CROSSREFS
Sequence in context: A253224 A334979 A183535 * A237880 A284338 A161477
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 12 2011
STATUS
approved