A156628 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 3 | | 2 | | 1 |
| | | | | | | | 13 | | 7 | | 3 | | 1 |
| | | | | | | 71 | | 33 | | 13 | | 4 | | 1 |
| | | | | | 461 | | 191 | | 71 | | 20 | | 5 | | 1 |
| | | | | 3447 | | 1297 | | 461 | | 120 | | 28 | | 6 | | 1 |
| | | | 29093 | | 10063 | | 3447 | | 836 | | 181 | | 38 | | 7 | | 1 |
| | | 273343 | | 87669 | | 29093 | | 6616 | | 1333 | | 270 | | 49 | | 8 | | 1 |
| | 2829325 | | 847015 | | 273343 | | 58576 | | 11029 | | 2150 | | 375 | | 61 | | 9 | | 1 |
|
A156628 as a square array
| 1 | 1 | 3 | 13 | 71 | 461 | 3447 | 29093 | 273343 | 2829325
| | 1 | 2 | 7 | 33 | 191 | 1297 | 10063 | 87669 | 847015
| | 1 | 3 | 13 | 71 | 461 | 3447 | 29093 | 273343
| | 1 | 4 | 20 | 120 | 836 | 6616 | 58576
| | 1 | 5 | 28 | 181 | 1333 | 11029
| | 1 | 6 | 38 | 270 | 2150
| | 1 | 7 | 49 | 375
| | 1 | 8 | 61
| | 1 | 9
| | 1
|
A156628 as an upper right triangle
| 1 | 1 | 3 | 13 | 71 | 461 | 3447 | 29093 | 273343 | 2829325
| | 1 | 2 | 7 | 33 | 191 | 1297 | 10063 | 87669 | 847015
| | | 1 | 3 | 13 | 71 | 461 | 3447 | 29093 | 273343
| | | | 1 | 4 | 20 | 120 | 836 | 6616 | 58576
| | | | | 1 | 5 | 28 | 181 | 1333 | 11029
| | | | | | 1 | 6 | 38 | 270 | 2150
| | | | | | | 1 | 7 | 49 | 375
| | | | | | | | 1 | 8 | 61
| | | | | | | | | 1 | 9
| | | | | | | | | | 1
|
|
