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A154045
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Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 3 X 3 X 3 subtriangle summing to 5.
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0
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252, 1304, 3408, 5277, 7873, 6195, 3852, 2331, 1803, 1728, 1968, 1728, 1728, 1872, 1728, 1728, 1864, 1728, 1728, 1872, 1728, 1728, 1968, 1728, 1728, 1872, 1728, 1728, 1864, 1728, 1728, 1872, 1728, 1728, 1968, 1728, 1728, 1872, 1728, 1728, 1864, 1728
(list; graph; refs; listen; history; internal format)
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OFFSET
| 3,1
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COMMENTS
| Pattern 1728 1968 1728 1728 1872 1728 1728 1864 1728 1728 1872 1728 starts at n=12 and continues through at least n=55.
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EXAMPLE
| Maximal zeros solution for n=12
.............0
............0.2
...........3.0.0
..........0.1.1.1
.........0.1.0.2.1
........1.1.2.0.0.1
.......2.1.0.0.3.0.0
......0.0.1.2.0.0.2.2
.....1.1.1.1.0.2.0.1.0
....0.2.1.0.1.1.1.1.0.1
...2.0.0.1.2.0.1.0.2.1.1
..2.0.1.2.0.0.2.1.0.1.1.0
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CROSSREFS
| Sequence in context: A200884 A184505 A184499 * A172223 A154073 A166783
Adjacent sequences: A154042 A154043 A154044 * A154046 A154047 A154048
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KEYWORD
| nonn
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AUTHOR
| R. H. Hardin (rhhardin(AT)att.net) Jan 04 2009
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