|
|
A185789
|
|
Number of (n+1)X(n+1) binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum
|
|
0
|
|
|
16, 96, 510, 3756, 23064, 175588, 1091308, 13289252, 94533508, 1604631196, 12332662584
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for 3X3
..0..0..0....1..1..1....1..1..0....1..1..1....1..1..1....0..0..0....0..1..1
..1..1..0....0..0..1....1..0..1....0..0..1....0..0..1....1..1..0....0..0..1
..0..1..0....1..0..1....1..0..0....0..0..1....0..1..0....1..1..0....0..0..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|