|
| |
|
|
A235439
|
|
Number of (n+1)X(3+1) 0..2 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise
|
|
1
|
|
|
|
2500, 65497, 1762344, 37115629, 785712765, 13504013024, 235332193767, 3433774399772, 50886532849316, 647263611376214, 8360593933795473, 94543450237472909, 1085137138664791739, 11076999555060193403
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=2
..1..1..1..1....2..0..2..1....2..0..0..0....1..1..0..0....0..2..0..2
..2..2..2..0....2..2..2..0....1..2..1..2....1..2..2..2....0..2..0..2
..2..0..2..2....2..2..0..0....2..2..2..0....2..0..1..1....2..2..1..2
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
