A256161 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | | 1 | | 3 | | 4 | | 1 |
| | | | | | | | 1 | | 4 | | 11 | | 6 | | 1 |
| | | | | | | 1 | | 5 | | 26 | | 23 | | 9 | | 1 |
| | | | | | 1 | | 6 | | 57 | | 72 | | 50 | | 12 | | 1 |
| | | | | 1 | | 7 | | 120 | | 201 | | 222 | | 86 | | 16 | | 1 |
| | | | 1 | | 8 | | 247 | | 522 | | 867 | | 480 | | 150 | | 20 | | 1 |
| | | 1 | | 9 | | 502 | | 1291 | | 3123 | | 2307 | | 1080 | | 230 | | 25 | | 1 |
| | 1 | | 10 | | 1013 | | 3084 | | 10660 | | 10044 | | 6627 | | 2000 | | 355 | | 30 | | 1 |
|
A256161 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
| | 1 | 4 | 11 | 26 | 57 | 120 | 247 | 502 | 1013
| | 1 | 6 | 23 | 72 | 201 | 522 | 1291 | 3084
| | 1 | 9 | 50 | 222 | 867 | 3123 | 10660
| | 1 | 12 | 86 | 480 | 2307 | 10044
| | 1 | 16 | 150 | 1080 | 6627
| | 1 | 20 | 230 | 2000
| | 1 | 25 | 355
| | 1 | 30
| | 1
|
A256161 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10
| | | 1 | 4 | 11 | 26 | 57 | 120 | 247 | 502 | 1013
| | | | 1 | 6 | 23 | 72 | 201 | 522 | 1291 | 3084
| | | | | 1 | 9 | 50 | 222 | 867 | 3123 | 10660
| | | | | | 1 | 12 | 86 | 480 | 2307 | 10044
| | | | | | | 1 | 16 | 150 | 1080 | 6627
| | | | | | | | 1 | 20 | 230 | 2000
| | | | | | | | | 1 | 25 | 355
| | | | | | | | | | 1 | 30
| | | | | | | | | | | 1
|
|
