|
| |
|
|
A153963
|
|
Number of planar n X n X n binary triangular grids with mirror symmetry about one altitude with no more than 8 ones in any 5 X 5 X 5 subtriangle.
|
|
0
|
|
|
|
1, 2, 4, 16, 61, 331, 2182, 26179, 323131, 7261166, 162366708, 6677383044, 277240875794, 21086244209472, 1619660339949369, 226006979439621982
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
0,2
|
|
|
LINKS
|
|
|
|
CROSSREFS
|
|
|
|
KEYWORD
|
nonn
|
|
|
AUTHOR
|
|
|
|
STATUS
|
approved
|
| |
|
|
