|
|
A184196
|
|
Half the number of (n+1)X9 binary arrays with no 2X2 subblock containing exactly one 1
|
|
1
|
|
|
19172, 2668339, 327471410, 42079740149, 5360172454105, 685056630399242, 87501032165288029, 11179084602659460821, 1428175394298048190822, 182458818788944483329317, 23310253102420729752412513
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for 3X9
..0..0..1..1..0..1..0..0..1....0..0..1..1..1..1..1..1..0
..0..0..1..1..0..1..0..0..1....0..0..1..0..1..1..1..1..1
..1..1..0..1..0..1..0..0..1....1..1..1..1..0..1..0..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|