A197109 as a triangular array
| | | | | | | | 2 |
| | | | | | | | 6 | | 6 |
| | | | | | | 16 | | 78 | | 16 |
| | | | | | 61 | | 1015 | | 1015 | | 61 |
| | | | | 212 | | 13526 | | 50831 | | 13526 | | 212 |
| | | | 753 | | 181032 | | 2548972 | | 2548972 | | 181032 | | 753 |
| | | 2661 | | 2421376 | | 127561432 | | 478107878 | | 127561432 | | 2421376 | | 2661 |
| | 9415 | | 32393085 | | 6385146382 | | 89735942231 | | 89735942231 |
|
A197109 as a square array
2 | 6 | 16 | 61 | 212 | 753 | 2661 | 9415
| 6 | 78 | 1015 | 13526 | 181032 | 2421376 | 32393085
| 16 | 1015 | 50831 | 2548972 | 127561432 | 6385146382
| 61 | 13526 | 2548972 | 478107878 | 89735942231
| 212 | 181032 | 127561432 | 89735942231
| 753 | 2421376
| 2661
|
A197109 as an upper right triangle
2 | 6 | 16 | 61 | 212 | 753 | 2661 | 9415
| | 6 | 78 | 1015 | 13526 | 181032 | 2421376 | 32393085
| | | 16 | 1015 | 50831 | 2548972 | 127561432 | 6385146382
| | | | 61 | 13526 | 2548972 | 478107878 | 89735942231
| | | | | 212 | 181032 | 127561432 | 89735942231
| | | | | | 753 | 2421376
| | | | | | | 2661
| | | | | | |
|
|