|
| |
|
|
A202741
|
|
Number of n X 7 0..1 arrays with row sums equal and column sums unequal to adjacent columns.
|
|
0
|
|
|
|
2, 214, 14258, 613950, 24620522, 967878370, 37121438930, 1401569558590, 52383342552410, 1938999772255314, 71224141762895090
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=3
..1..1..1..1..0..0..0....0..0..1..0..1..1..1....1..1..0..1..0..0..0
..0..0..0..1..1..1..1....1..0..1..0..0..1..1....0..0..0..1..1..1..0
..0..1..0..1..1..0..1....1..1..0..0..1..1..0....1..0..0..1..1..0..0
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
