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A221333 Number of 6Xn arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2 0
1, 19601, 9637322, 7010554450, 4205264399891, 2568131772343102, 1529318909534974055, 908027872393164105009 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 6 of A221328
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0
..1..2..0....1..2..2....1..2..0....2..1..0....1..2..1....2..1..0....2..1..0
..2..1..0....1..1..1....2..2..1....2..1..1....0..2..2....1..2..1....2..1..1
..2..1..2....1..2..0....1..1..2....0..2..2....1..1..2....2..2..1....2..2..0
..1..1..0....2..0..2....0..0..1....2..0..2....0..0..1....1..2..1....1..0..2
..2..1..1....1..0..1....2..1..1....1..0..1....2..2..0....0..1..0....1..0..2
CROSSREFS
Sequence in context: A339534 A319062 A344829 * A069369 A156721 A174760
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 11 2013
STATUS
approved

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Last modified June 20 03:21 EDT 2024. Contains 373512 sequences. (Running on oeis4.)