|
|
A220326
|
|
Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..1 nX5 array
|
|
0
|
|
|
7, 174, 4062, 92093, 2065264, 46094354, 1026529800, 22841390408, 508110710307, 11302385499363, 251409042152240, 5592331837970994, 124395540371693940, 2767041352339397099
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=3
..0..1..0..0..0....0..1..1..1..1....0..1..0..1..1....0..1..0..0..0
..1..0..0..0..1....0..0..0..1..0....0..0..1..0..0....1..0..1..1..1
..0..1..0..1..0....0..0..0..1..0....0..0..0..1..0....0..0..0..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|