login
A197885
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,1,1 for x=0,1,2,3,4
1
2, 14, 47, 155, 835, 2263, 10827, 38938, 157178, 654028, 2607334, 10482745, 41930639, 169374587, 686689100, 2793219587, 11244612740, 45359859580, 183328706973, 742423862981, 3008747408411, 12158966386525, 49114866456717
OFFSET
1,1
COMMENTS
Every 0 is next to 0 0'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 4 of A197889
LINKS
EXAMPLE
Some solutions containing all values 0 to 4 for n=5
..2..1..0..1....2..1..1..2....2..1..1..2....0..1..2..1....0..1..1..2
..1..3..1..2....1..4..1..1....1..1..4..1....2..1..3..1....1..2..0..1
..0..2..1..0....0..1..2..0....0..2..1..0....1..4..1..2....0..2..1..3
..1..1..4..1....2..1..0..1....1..3..1..2....0..1..1..0....1..1..4..1
..2..1..1..2....1..3..1..2....2..1..3..1....1..2..2..1....2..1..1..2
CROSSREFS
Sequence in context: A079937 A324915 A281760 * A200193 A188571 A083102
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 19 2011
STATUS
approved