|
|
A155231
|
|
Number of ways to place zero or more nonadjacent 1,1 2,1 2,2 3,0 3,1 polyhexes in any orientation on a planar nXnXn triangular grid.
|
|
0
|
|
|
1, 7, 25, 55, 259, 2433, 26055, 255284, 3429704, 71355614, 1963935839, 63893300754, 2652285259513, 148465098222315
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
3,2
|
|
LINKS
|
|
|
EXAMPLE
|
Maximal 13 X 13 X 13 example
...............0
..............1.0
.............1.1.1
............0.0.0.1
...........0.1.1.0.0
..........1.0.0.1.1.0
.........1.1.1.0.1.0.1
........0.0.0.1.0.0.1.1
.......0.1.1.0.0.1.1.0.0
......1.0.1.0.1.0.0.0.1.0
.....1.0.1.0.1.0.1.1.1.0.1
....0.1.0.1.0.1.0.1.0.0.1.1
...0.1.1.0.0.1.1.0.0.1.1.0.0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|