A168291 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 1 | | 1 |
| | | | | | | | | 1 | | 6 | | 1 |
| | | | | | | | 1 | | 15 | | 15 | | 1 |
| | | | | | | 1 | | 32 | | 82 | | 32 | | 1 |
| | | | | | 1 | | 65 | | 330 | | 330 | | 65 | | 1 |
| | | | | 1 | | 130 | | 1159 | | 2304 | | 1159 | | 130 | | 1 |
| | | | 1 | | 259 | | 3801 | | 13195 | | 13195 | | 3801 | | 259 | | 1 |
| | | 1 | | 516 | | 12016 | | 67316 | | 117170 | | 67316 | | 12016 | | 516 | | 1 |
| | 1 | | 1029 | | 37212 | | 319332 | | 889230 | | 889230 | | 319332 | | 37212 |
|
A168291 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 15 | 32 | 65 | 130 | 259 | 516 | 1029
| | 1 | 15 | 82 | 330 | 1159 | 3801 | 12016 | 37212
| | 1 | 32 | 330 | 2304 | 13195 | 67316 | 319332
| | 1 | 65 | 1159 | 13195 | 117170 | 889230
| | 1 | 130 | 3801 | 67316 | 889230
| | 1 | 259 | 12016 | 319332
| | 1 | 516 | 37212
| | 1
|
A168291 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 6 | 15 | 32 | 65 | 130 | 259 | 516 | 1029
| | | 1 | 15 | 82 | 330 | 1159 | 3801 | 12016 | 37212
| | | | 1 | 32 | 330 | 2304 | 13195 | 67316 | 319332
| | | | | 1 | 65 | 1159 | 13195 | 117170 | 889230
| | | | | | 1 | 130 | 3801 | 67316 | 889230
| | | | | | | 1 | 259 | 12016 | 319332
| | | | | | | | 1 | 516 | 37212
| | | | | | | | | 1
| | | | | | | | |
|
|
