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A194134
Number of ways to arrange 6 indistinguishable points on an n X n X n triangular grid so that no three points are collinear at any angle.
2
0, 0, 0, 1, 244, 6480, 69798, 496198, 2595897, 10912452, 38739354, 121694240, 342722071, 887407361, 2136513884, 4828507719, 10332712952, 21117591802, 41392701372, 78248425161, 143087468105, 253946607496, 438734862156
OFFSET
1,5
COMMENTS
Column 6 of A194136.
LINKS
EXAMPLE
Some solutions for 5 X 5 X 5:
......1..........1..........1..........0..........0..........0..........0
.....0.1........1.0........0.0........0.1........1.0........1.1........1.1
....1.0.0......0.0.0......1.0.0......1.0.1......0.1.1......0.0.1......0.0.0
...0.0.1.0....0.1.1.0....0.1.0.1....1.0.1.0....0.1.0.0....1.0.0.0....1.0.0.1
..0.1.1.0.0..0.0.1.0.1..0.1.0.1.0..0.0.0.1.0..0.0.1.0.1..0.1.0.1.0..0.1.0.1.0
CROSSREFS
Sequence in context: A178266 A081864 A002594 * A085440 A218246 A217471
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 17 2011
STATUS
approved