A157109 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 2 | | 1 |
| | | | | | | | 1 | | 9 | | 3 | | 1 |
| | | | | | | 1 | | 16 | | 120 | | 4 | | 1 |
| | | | | | 1 | | 50 | | 300 | | 2300 | | 5 | | 1 |
| | | | | 1 | | 90 | | 4005 | | 7140 | | 58905 | | 6 | | 1 |
| | | | 1 | | 245 | | 10731 | | 518665 | | 211876 | | 1906884 | | 7 | | 1 |
| | | 1 | | 448 | | 100128 | | 1848224 | | 102114376 | | 7624512 | | 74974368 | | 8 | | 1 |
| | 1 | | 1134 | | 285390 | | 71728020 | | 450710001 | | 28845440064 | | 324540216 | | 3477216600 | | 9 | | 1 |
|
A157109 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 9 | 16 | 50 | 90 | 245 | 448 | 1134
| | 1 | 3 | 120 | 300 | 4005 | 10731 | 100128 | 285390
| | 1 | 4 | 2300 | 7140 | 518665 | 1848224 | 71728020
| | 1 | 5 | 58905 | 211876 | 102114376 | 450710001
| | 1 | 6 | 1906884 | 7624512 | 28845440064
| | 1 | 7 | 74974368 | 324540216
| | 1 | 8 | 3477216600
| | 1 | 9
| | 1
|
A157109 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 2 | 9 | 16 | 50 | 90 | 245 | 448 | 1134
| | | 1 | 3 | 120 | 300 | 4005 | 10731 | 100128 | 285390
| | | | 1 | 4 | 2300 | 7140 | 518665 | 1848224 | 71728020
| | | | | 1 | 5 | 58905 | 211876 | 102114376 | 450710001
| | | | | | 1 | 6 | 1906884 | 7624512 | 28845440064
| | | | | | | 1 | 7 | 74974368 | 324540216
| | | | | | | | 1 | 8 | 3477216600
| | | | | | | | | 1 | 9
| | | | | | | | | | 1
|
|
