|
|
A254889
|
|
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically
|
|
1
|
|
|
9560, 35296, 171400, 822072, 2580056, 8115610, 23589212, 59995430, 145387986, 331801795, 719425086, 1522572859, 3138860414, 6329390631, 12570672314, 24624380444, 47807796436, 92338992457, 177468932212, 339829018669
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..0..0..0..0..1....0..0..1..1..1....0..0..1..0..1....0..1..0..0..1
..1..0..0..1..1....0..0..0..0..0....0..0..0..0..0....0..0..0..0..1
..1..1..1..1..1....0..0..0..1..1....0..0..0..0..0....0..1..1..1..1
..0..1..0..1..1....1..0..1..1..0....1..1..0..1..1....0..1..1..1..1
..0..1..0..1..1....0..1..1..0..0....0..0..0..1..1....0..0..0..0..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|