A081582 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 9 | | 1 |
| | | | | | | | | 1 | | 17 | | 17 | | 1 |
| | | | | | | | 1 | | 25 | | 97 | | 25 | | 1 |
| | | | | | | 1 | | 33 | | 241 | | 241 | | 33 | | 1 |
| | | | | | 1 | | 41 | | 449 | | 1161 | | 449 | | 41 | | 1 |
| | | | | 1 | | 49 | | 721 | | 3297 | | 3297 | | 721 | | 49 | | 1 |
| | | | 1 | | 57 | | 1057 | | 7161 | | 14721 | | 7161 | | 1057 | | 57 | | 1 |
| | | 1 | | 65 | | 1457 | | 13265 | | 44961 | | 44961 | | 13265 | | 1457 | | 65 | | 1 |
| | 1 | | 73 | | 1921 | | 22121 | | 108353 | | 192969 | | 108353 | | 22121 | | 1921 | | 73 | | 1 |
|
A081582 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 9 | 17 | 25 | 33 | 41 | 49 | 57 | 65 | 73
| | 1 | 17 | 97 | 241 | 449 | 721 | 1057 | 1457 | 1921
| | 1 | 25 | 241 | 1161 | 3297 | 7161 | 13265 | 22121
| | 1 | 33 | 449 | 3297 | 14721 | 44961 | 108353
| | 1 | 41 | 721 | 7161 | 44961 | 192969
| | 1 | 49 | 1057 | 13265 | 108353
| | 1 | 57 | 1457 | 22121
| | 1 | 65 | 1921
| | 1 | 73
| | 1
|
A081582 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 9 | 17 | 25 | 33 | 41 | 49 | 57 | 65 | 73
| | | 1 | 17 | 97 | 241 | 449 | 721 | 1057 | 1457 | 1921
| | | | 1 | 25 | 241 | 1161 | 3297 | 7161 | 13265 | 22121
| | | | | 1 | 33 | 449 | 3297 | 14721 | 44961 | 108353
| | | | | | 1 | 41 | 721 | 7161 | 44961 | 192969
| | | | | | | 1 | 49 | 1057 | 13265 | 108353
| | | | | | | | 1 | 57 | 1457 | 22121
| | | | | | | | | 1 | 65 | 1921
| | | | | | | | | | 1 | 73
| | | | | | | | | | | 1
|
|
