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A154063
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Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 4 X 4 X 4 subtriangle summing to 7.
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0
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112, 744, 469, 1180, 477, 951, 243, 382, 84, 154, 57, 136, 68, 106, 56, 136, 56, 136, 56, 136, 56, 106, 68, 136, 56, 106, 56, 136, 56, 106, 56, 136, 68, 106, 56, 136, 56, 136, 56, 136, 56, 106, 68, 136, 56, 106, 56, 136, 56, 106, 56, 136, 68, 106, 56, 136, 56
(list; graph; refs; listen; history; internal format)
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OFFSET
| 4,1
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EXAMPLE
| Maximal zeros solution for n=15
................0
...............0.0
..............0.3.0
.............2.0.0.2
............0.0.2.0.0
...........1.0.1.1.0.1
..........0.2.0.1.0.2.0
.........2.1.0.1.1.0.1.2
........0.0.1.0.2.0.1.0.0
.......0.0.2.1.0.0.1.2.0.0
......1.2.0.0.0.3.0.0.0.2.1
.....2.0.0.2.1.0.0.1.2.0.0.2
....0.1.1.0.1.0.2.0.1.0.1.1.0
...0.0.1.1.1.0.1.1.0.1.1.1.0.0
..0.0.1.2.0.0.0.3.0.0.0.2.1.0.0
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CROSSREFS
| Sequence in context: A203923 A203916 A189544 * A205250 A047631 A203796
Adjacent sequences: A154060 A154061 A154062 * A154064 A154065 A154066
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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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