A128180 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | -1 | | 2 |
| | | | | | | | | 2 | | -1 | | 3 |
| | | | | | | | -2 | | 3 | | -1 | | 4 |
| | | | | | | 3 | | -2 | | 4 | | -1 | | 5 |
| | | | | | -3 | | 4 | | -2 | | 5 | | -1 | | 6 |
| | | | | 4 | | -3 | | 5 | | -2 | | 6 | | -1 | | 7 |
| | | | -4 | | 5 | | -3 | | 6 | | -2 | | 7 | | -1 | | 8 |
| | | 5 | | -4 | | 6 | | -3 | | 7 | | -2 | | 8 | | -1 | | 9 |
| | -5 | | 6 | | -4 | | 7 | | -3 | | 8 | | -2 | | 9 | | -1 | | 10 |
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A128180 as a square array
1 | -1 | 2 | -2 | 3 | -3 | 4 | -4 | 5 | -5
| 2 | -1 | 3 | -2 | 4 | -3 | 5 | -4 | 6
| 3 | -1 | 4 | -2 | 5 | -3 | 6 | -4
| 4 | -1 | 5 | -2 | 6 | -3 | 7
| 5 | -1 | 6 | -2 | 7 | -3
| 6 | -1 | 7 | -2 | 8
| 7 | -1 | 8 | -2
| 8 | -1 | 9
| 9 | -1
| 10
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A128180 as an upper right triangle
1 | -1 | 2 | -2 | 3 | -3 | 4 | -4 | 5 | -5
| | 2 | -1 | 3 | -2 | 4 | -3 | 5 | -4 | 6
| | | 3 | -1 | 4 | -2 | 5 | -3 | 6 | -4
| | | | 4 | -1 | 5 | -2 | 6 | -3 | 7
| | | | | 5 | -1 | 6 | -2 | 7 | -3
| | | | | | 6 | -1 | 7 | -2 | 8
| | | | | | | 7 | -1 | 8 | -2
| | | | | | | | 8 | -1 | 9
| | | | | | | | | 9 | -1
| | | | | | | | | | 10
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