|
| |
|
|
A258562
|
|
Number of (n+2)X(2+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum equal to the central column sum
|
|
1
|
|
|
|
179776, 4884100, 134652816, 3749847696, 103717490704, 2859893618884, 79025557095424, 2186180765718544, 60436066572750400, 1669986326796722064, 46157911722096725056, 1276016937808498835524, 35271105508345095065664
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
|
|
|
LINKS
|
|
|
|
EXAMPLE
|
Some solutions for n=1
..0..2..1..1....1..0..2..2....0..2..0..2....0..2..0..0....0..1..0..2
..1..2..2..2....1..2..2..0....2..2..1..2....2..2..0..0....1..1..2..1
..2..0..0..1....2..2..2..0....1..0..0..1....0..1..1..1....0..0..1..2
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
