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A195767
Number of triangular nXnXn 0..5 arrays with all row sums equal to the length of the row and all diagonal sums equal to the length of the respective diagonal
0
1, 1, 1, 3, 18, 228, 8904, 1039761, 379119168
OFFSET
1,4
COMMENTS
Column 5 of A195768
EXAMPLE
Some solutions for n=6
.......1............1............1............1............1............1
......1.1..........1.1..........1.1..........1.1..........1.1..........0.2
.....0.3.0........1.0.2........3.0.0........1.2.0........1.1.1........1.2.0
....1.1.1.1......2.1.0.1......0.0.2.2......1.0.2.1......1.1.2.0......1.1.1.1
...2.0.1.0.2....0.1.2.2.0....0.2.1.1.1....1.1.1.0.2....1.1.0.1.2....2.0.1.1.1
..1.0.2.2.0.1..1.2.0.0.2.1..1.2.1.0.1.1..1.1.1.2.0.1..1.1.1.2.0.1..1.0.2.1.1.1
CROSSREFS
Sequence in context: A274271 A195765 A195766 * A195763 A265460 A137223
KEYWORD
nonn
AUTHOR
R. H. Hardin Sep 23 2011
STATUS
approved