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A194478 Number of ways to arrange 6 indistinguishable points on an nXnXn triangular grid so that no three points are in the same row or diagonal 1
0, 0, 0, 1, 337, 8733, 96478, 668028, 3413828, 14054915, 49171641, 151422970, 420674150, 1073422309, 2550004472, 5699074284, 12082541388, 24462528078, 47555986746, 89173692795, 161899772067, 285517344145, 490447009030 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

Column 6 of A194480

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..31

EXAMPLE

Some solutions for 5X5X5

......0..........0..........1..........0..........0..........1..........1

.....0.0........1.0........0.0........1.1........1.0........0.0........0.1

....1.1.0......0.0.1......0.1.0......0.0.0......1.0.1......0.1.0......1.0.0

...0.0.1.1....0.1.0.1....0.1.1.0....1.0.0.1....0.1.0.1....0.1.1.0....0.0.1.0

..1.0.0.0.1..1.0.0.1.0..1.0.0.0.1..0.1.1.0.0..0.1.0.0.0..0.0.1.0.1..0.0.1.1.0

CROSSREFS

Sequence in context: A160069 A201852 A184202 * A084231 A243483 A234625

Adjacent sequences:  A194475 A194476 A194477 * A194479 A194480 A194481

KEYWORD

nonn

AUTHOR

R. H. Hardin Aug 26 2011

STATUS

approved

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Last modified October 25 17:08 EDT 2014. Contains 248557 sequences.