A247502 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 4 | | 1 |
| | | | | | | | 1 | | 13 | | 9 | | 1 |
| | | | | | | 1 | | 41 | | 57 | | 16 | | 1 |
| | | | | | 1 | | 131 | | 320 | | 165 | | 25 | | 1 |
| | | | | 1 | | 428 | | 1711 | | 1420 | | 380 | | 36 | | 1 |
| | | | 1 | | 1429 | | 8967 | | 11151 | | 4620 | | 756 | | 49 | | 1 |
| | | 1 | | 4861 | | 46663 | | 83202 | | 49665 | | 12306 | | 1358 | | 64 | | 1 |
| | 1 | | 16795 | | 242634 | | 602407 | | 495327 | | 172893 | | 28476 | | 2262 | | 81 | | 1 |
|
A247502 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 13 | 41 | 131 | 428 | 1429 | 4861 | 16795
| | 1 | 9 | 57 | 320 | 1711 | 8967 | 46663 | 242634
| | 1 | 16 | 165 | 1420 | 11151 | 83202 | 602407
| | 1 | 25 | 380 | 4620 | 49665 | 495327
| | 1 | 36 | 756 | 12306 | 172893
| | 1 | 49 | 1358 | 28476
| | 1 | 64 | 2262
| | 1 | 81
| | 1
|
A247502 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 13 | 41 | 131 | 428 | 1429 | 4861 | 16795
| | | 1 | 9 | 57 | 320 | 1711 | 8967 | 46663 | 242634
| | | | 1 | 16 | 165 | 1420 | 11151 | 83202 | 602407
| | | | | 1 | 25 | 380 | 4620 | 49665 | 495327
| | | | | | 1 | 36 | 756 | 12306 | 172893
| | | | | | | 1 | 49 | 1358 | 28476
| | | | | | | | 1 | 64 | 2262
| | | | | | | | | 1 | 81
| | | | | | | | | | 1
|
|
