A061198 as a triangular array
| | | | | | | | | | | | | | 1 |
| | | | | | | | | | | | | | 0 | | 1 |
| | | | | | | | | | | | | 0 | | 1 | | 1 |
| | | | | | | | | | | | 0 | | 1 | | 1 | | 1 |
| | | | | | | | | | | 0 | | 2 | | 2 | | 1 | | 1 |
| | | | | | | | | | 0 | | 2 | | 2 | | 2 | | 1 | | 1 |
| | | | | | | | | 0 | | 3 | | 4 | | 3 | | 2 | | 1 | | 1 |
| | | | | | | | 0 | | 4 | | 5 | | 4 | | 3 | | 2 | | 1 | | 1 |
| | | | | | | 0 | | 5 | | 7 | | 6 | | 5 | | 3 | | 2 | | 1 | | 1 |
| | | | | | 0 | | 6 | | 9 | | 9 | | 6 | | 5 | | 3 | | 2 | | 1 | | 1 |
| | | | | 0 | | 8 | | 13 | | 12 | | 10 | | 7 | | 5 | | 3 | | 2 | | 1 | | 1 |
| | | | 0 | | 10 | | 16 | | 16 | | 13 | | 10 | | 7 | | 5 | | 3 | | 2 | | 1 | | 1 |
| | | 0 | | 12 | | 22 | | 22 | | 19 | | 14 | | 11 | | 7 | | 5 | | 3 | | 2 | | 1 | | 1 |
| | 0 | | 15 | | 27 | | 29 | | 25 | | 20 | | 14 | | 11 | | 7 | | 5 | | 3 | | 2 | | 1 | | 1 |
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A061198 as a square array
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 1 | 1 | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15
| 1 | 1 | 2 | 2 | 4 | 5 | 7 | 9 | 13 | 16 | 22 | 27
| 1 | 1 | 2 | 3 | 4 | 6 | 9 | 12 | 16 | 22 | 29
| 1 | 1 | 2 | 3 | 5 | 6 | 10 | 13 | 19 | 25
| 1 | 1 | 2 | 3 | 5 | 7 | 10 | 14 | 20
| 1 | 1 | 2 | 3 | 5 | 7 | 11 | 14
| 1 | 1 | 2 | 3 | 5 | 7 | 11
| 1 | 1 | 2 | 3 | 5 | 7
| 1 | 1 | 2 | 3 | 5
| 1 | 1 | 2 | 3
| 1 | 1 | 2
| 1 | 1
| 1
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A061198 as an upper right triangle
1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15
| | | 1 | 1 | 2 | 2 | 4 | 5 | 7 | 9 | 13 | 16 | 22 | 27
| | | | 1 | 1 | 2 | 3 | 4 | 6 | 9 | 12 | 16 | 22 | 29
| | | | | 1 | 1 | 2 | 3 | 5 | 6 | 10 | 13 | 19 | 25
| | | | | | 1 | 1 | 2 | 3 | 5 | 7 | 10 | 14 | 20
| | | | | | | 1 | 1 | 2 | 3 | 5 | 7 | 11 | 14
| | | | | | | | 1 | 1 | 2 | 3 | 5 | 7 | 11
| | | | | | | | | 1 | 1 | 2 | 3 | 5 | 7
| | | | | | | | | | 1 | 1 | 2 | 3 | 5
| | | | | | | | | | | 1 | 1 | 2 | 3
| | | | | | | | | | | | 1 | 1 | 2
| | | | | | | | | | | | | 1 | 1
| | | | | | | | | | | | | | 1
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