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A154056
Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 3 X 3 X 3 subtriangle summing to 6.
0
462, 3027, 9998, 20114, 39391, 39343, 30768, 18131, 8308, 5783, 7858, 5661, 6349, 7852, 5661, 5661, 8702, 5661, 5661, 7852, 6349, 5661, 7852, 5661, 6349, 7852, 5661, 5661, 8702, 5661, 5661, 7852, 6349, 5661, 7852, 5661, 6349, 7852, 5661, 5661, 8702
OFFSET
3,1
EXAMPLE
Maximal zeros solution for n=14
...............0
..............0.0
.............0.3.3
............3.0.0.0
...........0.0.3.0.0
..........0.3.0.0.3.3
.........3.0.0.3.0.0.0
........0.0.3.0.0.3.0.0
.......0.3.0.0.3.0.0.3.3
......3.0.0.3.0.0.3.0.0.0
.....0.0.3.0.0.3.0.0.3.0.0
....0.3.0.0.3.0.0.3.0.0.3.3
...3.0.0.3.0.0.3.0.0.3.0.0.0
..0.0.3.0.0.3.0.0.3.0.0.3.0.0
CROSSREFS
Sequence in context: A158627 A267567 A267557 * A236350 A364848 A027816
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 04 2009
STATUS
approved