A061928 formatted as a triangular array:
| | | | | | | | 6 | | | | | | | | |
| | | | | | | 12 | | 12 | | | | | | | |
| | | | | | 20 | | 30 | | 20 | | | | | | |
| | | | | 30 | | 60 | | 60 | | 30 | | | | | |
| | | | 42 | | 105 | | 140 | | 105 | | 42 | | | | |
| | | 56 | | 168 | | 280 | | 280 | | 168 | | 56 | | | |
| | 72 | | 252 | | 504 | | 630 | | 504 | | 252 | | 72 | | |
| 90 | | 360 | | 840 | | 1260 | | 1260 | | 840 | | 360 | | 90 | |
| 110 | | 495 | | 1320 | | 2310 | | 2772 | | 2310 | | 1320 | | 495 | | 110 |
A061928 formatted as a square array:
| 6 | 12 | 20 | 30 | 42 | 56 | 72 | 90 | 110 |
| 12 | 30 | 60 | 105 | 168 | 252 | 360 | 495 | |
| 20 | 60 | 140 | 280 | 504 | 840 | 1320 | | |
| 30 | 105 | 280 | 630 | 1260 | 2310 | | | |
| 42 | 168 | 504 | 1260 | 2772 | | | | |
| 56 | 252 | 840 | 2310 | | | | | |
| 72 | 360 | 1320 | | | | | | |
| 90 | 495 | | | | | | | |
| 110 | | | | | | | | |
A061928 formatted as an upper right triangle:
| 6 | 12 | 20 | 30 | 42 | 56 | 72 | 90 | 110 |
| 12 | 30 | 60 | 105 | 168 | 252 | 360 | 495 |
| | 20 | 60 | 140 | 280 | 504 | 840 | 1320 |
| | | 30 | 105 | 280 | 630 | 1260 | 2310 |
| | | | 42 | 168 | 504 | 1260 | 2772 |
| | | | | 56 | 252 | 840 | 2310 |
| | | | | | 72 | 360 | 1320 |
| | | | | | | 90 | 495 |
| | | | | | | | 110 |
|