A102220 formatted as a triangular array:
| | | | | | | 1 | | | | | | | |
| | | | | | 1 | | 1 | | | | | | |
| | | | | 5 | | 4 | | 1 | | | | | |
| | | | 55 | | 45 | | 9 | | 1 | | | | |
| | | 1077 | | 880 | | 180 | | 16 | | 1 | | | |
| | 32951 | | 26925 | | 5500 | | 500 | | 25 | | 1 | | |
| 1451723 | | 1186236 | | 242325 | | 22000 | | 1125 | | 36 | | 1 | |
| 87054773 | | 71134427 | | 14531391 | | 1319325 | | 67375 | | 2205 | | 49 | | 1 |
A102220 formatted as a square array:
| 1 | 1 | 5 | 55 | 1077 | 32951 | 1451723 | 87054773 |
| 1 | 4 | 45 | 880 | 26925 | 1186236 | 71134427 | |
| 1 | 9 | 180 | 5500 | 242325 | 14531391 | | |
| 1 | 16 | 500 | 22000 | 1319325 | | | |
| 1 | 25 | 1125 | 67375 | | | | |
| 1 | 36 | 2205 | | | | | |
| 1 | 49 | | | | | | |
| 1 | | | | | | | |
A102220 formatted as an upper right triangle:
| 1 | 1 | 5 | 55 | 1077 | 32951 | 1451723 | 87054773 |
| 1 | 4 | 45 | 880 | 26925 | 1186236 | 71134427 |
| | 1 | 9 | 180 | 5500 | 242325 | 14531391 |
| | | 1 | 16 | 500 | 22000 | 1319325 |
| | | | 1 | 25 | 1125 | 67375 |
| | | | | 1 | 36 | 2205 |
| | | | | | 1 | 49 |
| | | | | | | 1 |
|
