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 A194478 Number of ways to arrange 6 indistinguishable points on an n X n X n 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 5 X 5 X 5: ......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: A251271 A263865 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 March 22 12:01 EDT 2018. Contains 301067 sequences. (Running on oeis4.)