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A194015
Number of ways to arrange 12 points on an n X n X n triangular grid so that it balances at its center.
1
0, 0, 0, 0, 17, 4130, 246498, 6833514, 114889560, 1350364581, 12098859685, 87508246816, 531900780705, 2798253712804, 13029075803653, 54632738218122, 209171316078609, 739462342785714, 2436048010628520, 7535911103201627
OFFSET
1,5
COMMENTS
Column 12 of A194016.
LINKS
EXAMPLE
Some solutions for 7 X 7 X 7:
........1..............1..............1..............1..............1
.......0.0............0.1............0.1............1.0............0.1
......1.1.1..........0.1.1..........1.0.0..........0.0.0..........0.0.0
.....0.0.0.0........0.0.0.0........0.0.1.0........1.0.1.0........1.1.0.0
....0.0.1.0.0......1.0.0.0.0......1.0.0.0.1......1.0.1.1.0......0.1.1.0.0
...1.1.0.1.1.0....0.0.1.1.0.1....0.0.0.1.0.1....1.0.0.0.0.0....1.0.1.0.1.0
..0.0.1.1.0.0.1..0.1.1.1.1.0.0..1.1.1.0.0.0.1..0.0.1.0.1.1.1..0.0.0.1.1.0.1
CROSSREFS
Sequence in context: A367536 A239165 A329168 * A015058 A015034 A350980
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 11 2011
STATUS
approved