A030523 formatted as a triangular array:
| | | | | | | | | 1 | | | | | | | | | |
| | | | | | | | 3 | | 1 | | | | | | | | |
| | | | | | | 8 | | 6 | | 1 | | | | | | | |
| | | | | | 20 | | 25 | | 9 | | 1 | | | | | | |
| | | | | 48 | | 88 | | 51 | | 12 | | 1 | | | | | |
| | | | 112 | | 280 | | 231 | | 86 | | 15 | | 1 | | | | |
| | | 256 | | 832 | | 912 | | 476 | | 130 | | 18 | | 1 | | | |
| | 576 | | 2352 | | 3276 | | 2241 | | 850 | | 183 | | 21 | | 1 | | |
| 1280 | | 6400 | | 10976 | | 9424 | | 4645 | | 1380 | | 245 | | 24 | | 1 | |
| 2816 | | 16896 | | 34848 | | 36432 | | 22363 | | 8583 | | 2093 | | 316 | | 27 | | 1 |
A030523 formatted as a square array:
| 1 | 3 | 8 | 20 | 48 | 112 | 256 | 576 | 1280 | 2816 |
| 1 | 6 | 25 | 88 | 280 | 832 | 2352 | 6400 | 16896 | |
| 1 | 9 | 51 | 231 | 912 | 3276 | 10976 | 34848 | | |
| 1 | 12 | 86 | 476 | 2241 | 9424 | 36432 | | | |
| 1 | 15 | 130 | 850 | 4645 | 22363 | | | | |
| 1 | 18 | 183 | 1380 | 8583 | | | | | |
| 1 | 21 | 245 | 2093 | | | | | | |
| 1 | 24 | 316 | | | | | | | |
| 1 | 27 | | | | | | | | |
| 1 | | | | | | | | | |
A030523 formatted as an upper right triangle:
| 1 | 3 | 8 | 20 | 48 | 112 | 256 | 576 | 1280 | 2816 |
| 1 | 6 | 25 | 88 | 280 | 832 | 2352 | 6400 | 16896 |
| | 1 | 9 | 51 | 231 | 912 | 3276 | 10976 | 34848 |
| | | 1 | 12 | 86 | 476 | 2241 | 9424 | 36432 |
| | | | 1 | 15 | 130 | 850 | 4645 | 22363 |
| | | | | 1 | 18 | 183 | 1380 | 8583 |
| | | | | | 1 | 21 | 245 | 2093 |
| | | | | | | 1 | 24 | 316 |
| | | | | | | | 1 | 27 |
| | | | | | | | | 1 |
|