|
|
A252949
|
|
Number of (n+2)X(5+2) 0..2 arrays with every consecutive three elements in every row, column and nw-se diagonal having exactly two distinct values, and new values 0 upwards introduced in row major order
|
|
1
|
|
|
48024, 262494, 1784781, 13646115, 110574774, 919418760, 7763464440, 66003601788, 563165929260, 4814005980501, 41185929329001, 352531934350965, 3018217684914378, 25843545938825991, 221299439996922372
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=1
..0..1..0..0..2..0..2....0..1..1..0..0..2..2....0..1..1..2..1..2..1
..0..2..0..0..1..1..0....2..0..2..0..0..2..0....1..1..0..1..1..2..2
..1..1..2..1..2..1..2....2..1..1..2..1..1..2....1..2..1..1..0..1..1
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|