A147290 as a triangular array
| | | | | | | | | | | | 1 |
| | | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | | 1 | | 3 | | 1 |
| | | | | | | | | | 1 | | 4 | | 4 | | 1 |
| | | | | | | | | 1 | | 5 | | 10 | | 5 | | 1 |
| | | | | | | | 1 | | 6 | | 21 | | 21 | | 6 | | 1 |
| | | | | | | 1 | | 7 | | 41 | | 86 | | 41 | | 7 | | 1 |
| | | | | | 1 | | 8 | | 78 | | 337 | | 337 | | 78 | | 8 | | 1 |
| | | | | 1 | | 9 | | 148 | | 1247 | | 2486 | | 1247 | | 148 | | 9 | | 1 |
| | | | 1 | | 10 | | 283 | | 4377 | | 15745 | | 15745 | | 4377 | | 283 | | 10 | | 1 |
| | | 1 | | 11 | | 547 | | 14728 | | 88444 | | 156442 | | 88444 | | 14728 | | 547 | | 11 | | 1 |
| | 1 |
|
A147290 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| | 1 | 4 | 10 | 21 | 41 | 78 | 148 | 283 | 547
| | 1 | 5 | 21 | 86 | 337 | 1247 | 4377 | 14728
| | 1 | 6 | 41 | 337 | 2486 | 15745 | 88444
| | 1 | 7 | 78 | 1247 | 15745 | 156442
| | 1 | 8 | 148 | 4377 | 88444
| | 1 | 9 | 283 | 14728
| | 1 | 10 | 547
| | 1 | 11
| | 1
|
A147290 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11
| | | 1 | 4 | 10 | 21 | 41 | 78 | 148 | 283 | 547
| | | | 1 | 5 | 21 | 86 | 337 | 1247 | 4377 | 14728
| | | | | 1 | 6 | 41 | 337 | 2486 | 15745 | 88444
| | | | | | 1 | 7 | 78 | 1247 | 15745 | 156442
| | | | | | | 1 | 8 | 148 | 4377 | 88444
| | | | | | | | 1 | 9 | 283 | 14728
| | | | | | | | | 1 | 10 | 547
| | | | | | | | | | 1 | 11
| | | | | | | | | | | 1
| | | | | | | | | | |
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