A221573 as a triangular array
| | | | | | | | | | | 0 |
| | | | | | | | | | | 0 | | 2 |
| | | | | | | | | | 0 | | 5 | | 2 |
| | | | | | | | | 0 | | 10 | | 9 | | 4 |
| | | | | | | | 0 | | 17 | | 26 | | 25 | | 6 |
| | | | | | | 0 | | 26 | | 59 | | 100 | | 57 | | 10 |
| | | | | | 0 | | 37 | | 114 | | 289 | | 342 | | 141 | | 16 |
| | | | | 0 | | 50 | | 197 | | 676 | | 1293 | | 1210 | | 345 | | 26 |
| | | | 0 | | 65 | | 314 | | 1369 | | 3734 | | 5913 | | 4240 | | 853 | | 42 |
| | | 0 | | 82 | | 471 | | 2500 | | 8991 | | 20944 | | 26911 | | 14898 | | 2097 | | 68 |
| | 0 | | 101 | | 674 | | 4225 | | 19014 |
|
A221573 as a square array
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| 2 | 5 | 10 | 17 | 26 | 37 | 50 | 65 | 82 | 101
| 2 | 9 | 26 | 59 | 114 | 197 | 314 | 471 | 674
| 4 | 25 | 100 | 289 | 676 | 1369 | 2500 | 4225
| 6 | 57 | 342 | 1293 | 3734 | 8991 | 19014
| 10 | 141 | 1210 | 5913 | 20944
| 16 | 345 | 4240 | 26911
| 26 | 853 | 14898
| 42 | 2097
| 68
|
A221573 as an upper right triangle
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0
| | 2 | 5 | 10 | 17 | 26 | 37 | 50 | 65 | 82 | 101
| | | 2 | 9 | 26 | 59 | 114 | 197 | 314 | 471 | 674
| | | | 4 | 25 | 100 | 289 | 676 | 1369 | 2500 | 4225
| | | | | 6 | 57 | 342 | 1293 | 3734 | 8991 | 19014
| | | | | | 10 | 141 | 1210 | 5913 | 20944
| | | | | | | 16 | 345 | 4240 | 26911
| | | | | | | | 26 | 853 | 14898
| | | | | | | | | 42 | 2097
| | | | | | | | | | 68
| | | | | | | | | |
|
|