A008304 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 4 | | 1 |
| | | | | | | | | 1 | | 16 | | 6 | | 1 |
| | | | | | | | 1 | | 69 | | 41 | | 8 | | 1 |
| | | | | | | 1 | | 348 | | 293 | | 67 | | 10 | | 1 |
| | | | | | 1 | | 2016 | | 2309 | | 602 | | 99 | | 12 | | 1 |
| | | | | 1 | | 13357 | | 19975 | | 5811 | | 1024 | | 137 | | 14 | | 1 |
| | | | 1 | | 99376 | | 189524 | | 60875 | | 11304 | | 1602 | | 181 | | 16 | | 1 |
| | | 1 | | 822040 | | 1960041 | | 690729 | | 133669 | | 19710 | | 2360 | | 231 | | 18 | | 1 |
| | 1 | | 7477161 |
|
A008304 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 16 | 69 | 348 | 2016 | 13357 | 99376 | 822040 | 7477161
| | 1 | 6 | 41 | 293 | 2309 | 19975 | 189524 | 1960041
| | 1 | 8 | 67 | 602 | 5811 | 60875 | 690729
| | 1 | 10 | 99 | 1024 | 11304 | 133669
| | 1 | 12 | 137 | 1602 | 19710
| | 1 | 14 | 181 | 2360
| | 1 | 16 | 231
| | 1 | 18
| | 1
|
A008304 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 4 | 16 | 69 | 348 | 2016 | 13357 | 99376 | 822040 | 7477161
| | | 1 | 6 | 41 | 293 | 2309 | 19975 | 189524 | 1960041
| | | | 1 | 8 | 67 | 602 | 5811 | 60875 | 690729
| | | | | 1 | 10 | 99 | 1024 | 11304 | 133669
| | | | | | 1 | 12 | 137 | 1602 | 19710
| | | | | | | 1 | 14 | 181 | 2360
| | | | | | | | 1 | 16 | 231
| | | | | | | | | 1 | 18
| | | | | | | | | | 1
| | | | | | | | | |
|
|
