A156939 as a triangular array
| | | | | | | | | 1 |
| | | | | | | | | 1 | | 1 |
| | | | | | | | 1 | | 15 | | 1 |
| | | | | | | 1 | | 155 | | 155 | | 1 |
| | | | | | 1 | | 1395 | | 14415 | | 1395 | | 1 |
| | | | | 1 | | 11811 | | 1098423 | | 1098423 | | 11811 | | 1 |
| | | | 1 | | 97155 | | 76499847 | | 688498623 | | 76499847 | | 97155 | | 1 |
| | | 1 | | 788035 | | 5104102695 | | 388932625359 | | 388932625359 | | 5104102695 | | 788035 | | 1 |
| | 1 | | 6347715 |
|
A156939 as a square array
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| 1 | 15 | 155 | 1395 | 11811 | 97155 | 788035 | 6347715
| 1 | 155 | 14415 | 1098423 | 76499847 | 5104102695
| 1 | 1395 | 1098423 | 688498623 | 388932625359
| 1 | 11811 | 76499847 | 388932625359
| 1 | 97155 | 5104102695
| 1 | 788035
| 1
|
A156939 as an upper right triangle
1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 15 | 155 | 1395 | 11811 | 97155 | 788035 | 6347715
| | | 1 | 155 | 14415 | 1098423 | 76499847 | 5104102695
| | | | 1 | 1395 | 1098423 | 688498623 | 388932625359
| | | | | 1 | 11811 | 76499847 | 388932625359
| | | | | | 1 | 97155 | 5104102695
| | | | | | | 1 | 788035
| | | | | | | | 1
| | | | | | | |
|
|