A168552 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | 1 | | 11 | | 11 | | 1 |
| | | | | | | 1 | | 43 | | 140 | | 43 | | 1 |
| | | | | | 1 | | 159 | | 1244 | | 1244 | | 159 | | 1 |
| | | | | 1 | | 551 | | 8779 | | 19954 | | 8779 | | 551 | | 1 |
| | | | 1 | | 1819 | | 54249 | | 236347 | | 236347 | | 54249 | | 1819 | | 1 |
| | | 1 | | 5811 | | 309742 | | 2353021 | | 4440834 | | 2353021 | | 309742 | | 5811 | | 1 |
| | 1 | | 18167 | | 1684634 | | 21025310 | | 67447952 | | 67447952 | | 21025310 | | 1684634 | | 18167 | | 1 |
|
A168552 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 11 | 43 | 159 | 551 | 1819 | 5811 | 18167
| | 1 | 11 | 140 | 1244 | 8779 | 54249 | 309742 | 1684634
| | 1 | 43 | 1244 | 19954 | 236347 | 2353021 | 21025310
| | 1 | 159 | 8779 | 236347 | 4440834 | 67447952
| | 1 | 551 | 54249 | 2353021 | 67447952
| | 1 | 1819 | 309742 | 21025310
| | 1 | 5811 | 1684634
| | 1 | 18167
| | 1
|
A168552 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 11 | 43 | 159 | 551 | 1819 | 5811 | 18167
| | | 1 | 11 | 140 | 1244 | 8779 | 54249 | 309742 | 1684634
| | | | 1 | 43 | 1244 | 19954 | 236347 | 2353021 | 21025310
| | | | | 1 | 159 | 8779 | 236347 | 4440834 | 67447952
| | | | | | 1 | 551 | 54249 | 2353021 | 67447952
| | | | | | | 1 | 1819 | 309742 | 21025310
| | | | | | | | 1 | 5811 | 1684634
| | | | | | | | | 1 | 18167
| | | | | | | | | | 1
|
|
