|
|
A200575
|
|
Number of nX4 0..2 arrays with no average of any element and its horizontal and vertical neighbors equal to one
|
|
1
|
|
|
22, 922, 28890, 938128, 30603332, 997303772, 32523513414, 1060675282092, 34590199046646, 1128052999950878, 36788018142626902, 1199728544485667908, 39125481049547004512, 1275958061644704120210, 41611474500836339304542
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..0..2..1..0....2..2..0..0....0..0..2..2....2..1..2..1....1..2..0..2
..2..2..0..1....2..1..0..0....1..1..1..2....1..2..2..1....2..2..2..2
..1..2..2..1....2..1..2..0....1..0..1..1....0..1..2..1....2..2..1..2
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|