|
|
A221227
|
|
Number of nX3 arrays of occupancy after each element moves to some king-move neighbor, with no occupancy greater than 2
|
|
1
|
|
|
2, 137, 2710, 65453, 1516877, 35691850, 840634931, 19825968683, 467700681922, 11033979463946, 260310036348836, 6141004253501805, 144870026550523656, 3417517033348984137, 80619091513823917355, 1901786313951533118427
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..0..2..2....0..0..1....0..1..1....2..1..2....2..1..2....1..1..0....1..1..1
..1..1..1....1..2..1....1..2..1....2..0..1....1..2..0....2..0..0....0..0..2
..0..1..1....0..2..2....1..2..0....0..1..0....0..0..1....2..1..2....1..1..2
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|