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A197214 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,1,0 for x=0,1,2,3,4 1
1, 18, 149, 1175, 10210, 84893, 706153, 5894192, 49247065, 411367276, 3434602140, 28682410161, 239530800201, 2000290147256, 16704503683687, 139499503942475, 1164956427123627, 9728544605113135, 81243067790950141, 678460374702910366 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Every 0 is next to 0 4's, every 1 is next to 1 3's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 0's
Column 5 of A197217
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..0..1....0..0..1..0..0....1..3..1..1..0....0..1..3..1..0
..0..0..1..1..3....0..0..3..1..1....0..1..1..3..1....0..0..1..0..1
..2..2..3..1..1....0..1..1..1..3....0..0..0..2..2....0..1..0..1..3
..2..2..1..0..0....1..3..1..0..1....0..0..0..2..2....1..3..1..0..1
CROSSREFS
Sequence in context: A224329 A221352 A271755 * A027182 A294486 A228994
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 11 2011
STATUS
approved

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Last modified May 29 21:02 EDT 2024. Contains 372952 sequences. (Running on oeis4.)