|
| |
|
|
A223629
|
|
Number of 5Xn 0..1 arrays with row sums nondecreasing and column sums unimodal
|
|
1
|
|
|
|
6, 120, 2114, 35413, 557432, 8313608, 119085643, 1641434223, 21968751393, 286602316306, 3658119581129, 45840023294595, 565061162009598, 6868648590255302, 82463672861242529, 979223612521821703
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=3
..0..0..0....1..0..0....0..0..1....0..0..1....0..1..0....0..1..0....1..0..0
..0..0..0....1..0..0....0..0..1....1..0..0....1..1..0....0..1..0....0..1..1
..0..0..1....0..1..0....0..0..1....1..0..0....1..0..1....0..1..0....1..1..0
..0..1..0....0..1..0....0..0..1....0..1..0....0..1..1....0..0..1....0..1..1
..0..1..0....1..1..0....1..1..1....1..1..0....1..0..1....1..0..1....1..1..1
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
