A128177 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 2 | | 1 |
| | | | | | | | | | | 4 | | 2 | | 1 |
| | | | | | | | | | 6 | | 4 | | 2 | | 1 |
| | | | | | | | | 9 | | 6 | | 4 | | 2 | | 1 |
| | | | | | | | 12 | | 9 | | 6 | | 4 | | 2 | | 1 |
| | | | | | | 16 | | 12 | | 9 | | 6 | | 4 | | 2 | | 1 |
| | | | | | 20 | | 16 | | 12 | | 9 | | 6 | | 4 | | 2 | | 1 |
| | | | | 25 | | 20 | | 16 | | 12 | | 9 | | 6 | | 4 | | 2 | | 1 |
| | | | 30 | | 25 | | 20 | | 16 | | 12 | | 9 | | 6 | | 4 | | 2 | | 1 |
| | | 36 | | 30 | | 25 | | 20 | | 16 | | 12 | | 9 | | 6 | | 4 | | 2 | | 1 |
| | 42 | | 36 | | 30 | | 25 | | 20 | | 16 | | 12 | | 9 | | 6 | | 4 | | 2 | | 1 |
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A128177 as a square array
1 | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25 | 30 | 36 | 42
| 1 | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25 | 30 | 36
| 1 | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25 | 30
| 1 | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25
| 1 | 2 | 4 | 6 | 9 | 12 | 16 | 20
| 1 | 2 | 4 | 6 | 9 | 12 | 16
| 1 | 2 | 4 | 6 | 9 | 12
| 1 | 2 | 4 | 6 | 9
| 1 | 2 | 4 | 6
| 1 | 2 | 4
| 1 | 2
| 1
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A128177 as an upper right triangle
1 | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25 | 30 | 36 | 42
| | 1 | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25 | 30 | 36
| | | 1 | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25 | 30
| | | | 1 | 2 | 4 | 6 | 9 | 12 | 16 | 20 | 25
| | | | | 1 | 2 | 4 | 6 | 9 | 12 | 16 | 20
| | | | | | 1 | 2 | 4 | 6 | 9 | 12 | 16
| | | | | | | 1 | 2 | 4 | 6 | 9 | 12
| | | | | | | | 1 | 2 | 4 | 6 | 9
| | | | | | | | | 1 | 2 | 4 | 6
| | | | | | | | | | 1 | 2 | 4
| | | | | | | | | | | 1 | 2
| | | | | | | | | | | | 1
|
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