A131048 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 2 |
| | | | | | | | 3 | | 3 | | 3 |
| | | | | | | 5 | | 12 | | 6 | | 4 |
| | | | | | 11 | | 25 | | 30 | | 10 | | 5 |
| | | | | 21 | | 66 | | 75 | | 60 | | 15 | | 6 |
| | | | 43 | | 147 | | 231 | | 175 | | 105 | | 21 | | 7 |
| | | 85 | | 344 | | 588 | | 616 | | 350 | | 168 | | 28 | | 8 |
| | 171 | | 765 | | 1548 | | 1764 | | 1386 | | 630 | | 252 | | 36 | | 9 |
|
A131048 as a square array
| 1 | 1 | 3 | 5 | 11 | 21 | 43 | 85 | 171
| | 2 | 3 | 12 | 25 | 66 | 147 | 344 | 765
| | 3 | 6 | 30 | 75 | 231 | 588 | 1548
| | 4 | 10 | 60 | 175 | 616 | 1764
| | 5 | 15 | 105 | 350 | 1386
| | 6 | 21 | 168 | 630
| | 7 | 28 | 252
| | 8 | 36
| | 9
|
A131048 as an upper right triangle
| 1 | 1 | 3 | 5 | 11 | 21 | 43 | 85 | 171
| | 2 | 3 | 12 | 25 | 66 | 147 | 344 | 765
| | | 3 | 6 | 30 | 75 | 231 | 588 | 1548
| | | | 4 | 10 | 60 | 175 | 616 | 1764
| | | | | 5 | 15 | 105 | 350 | 1386
| | | | | | 6 | 21 | 168 | 630
| | | | | | | 7 | 28 | 252
| | | | | | | | 8 | 36
| | | | | | | | | 9
|
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