|
| |
|
|
A057412
|
|
Number of staircase polygons of perimeter 2n with 3 (staircase polygon) holes on square lattice (not allowing rotations).
|
|
1
|
|
|
|
28, 884, 15266, 191688, 1964414, 17460336, 139630696, 1029053248, 7106319403, 46539551768, 291656481886, 1761110727936, 10301848134999, 58631700564776, 325806962400428, 1772760905500304, 9467673927142781
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
16,1
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
