|
|
A181008
|
|
Number of (n+4)xn binary matrices with rows and columns each in strictly increasing order as binary numbers and each row and column having an even number of 1s
|
|
0
|
|
|
|
OFFSET
|
1,5
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
All solutions for 8X4
..0..0..0..0
..0..0..1..1
..0..1..0..1
..0..1..1..0
..1..0..0..1
..1..0..1..0
..1..1..0..0
..1..1..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|