|
|
A254913
|
|
Number of (7+2) X (n+2) 0..1 arrays with every 3 X 3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
|
|
1
|
|
|
616608, 268310, 73167, 38752, 21843, 16493, 10974, 10203, 10488, 11818, 12925, 15168, 18127, 21500, 26459, 31278, 34998, 41431, 49279, 56961, 66198, 77601, 89779, 104252, 120811, 139506, 160068, 182670, 208909, 238276, 269065, 303271, 341491
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=1
..0..0..0....0..0..0....1..0..0....0..1..0....0..1..0....0..1..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..1..0....0..0..0
..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..1..0....0..0..1
..0..1..1....0..1..0....0..1..1....1..1..0....1..0..0....1..1..1....0..0..1
..0..0..0....0..1..1....0..0..1....1..0..0....1..0..0....1..0..1....0..0..0
..0..0..1....1..1..1....1..1..1....1..1..1....0..0..0....0..0..1....1..0..0
..1..0..1....1..0..0....1..1..1....0..1..1....1..1..0....1..1..0....1..0..1
..1..1..1....1..0..0....1..1..1....1..1..0....0..1..1....0..0..0....1..0..0
..1..1..1....1..1..1....1..0..1....0..0..1....0..0..1....1..1..1....1..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|