A220287 as a triangular array
| | | | | | | | | | 1 |
| | | | | | | | | | 2 | | 2 |
| | | | | | | | | 4 | | 4 | | 4 |
| | | | | | | | 8 | | 31 | | 31 | | 8 |
| | | | | | | 16 | | 96 | | 139 | | 96 | | 16 |
| | | | | | 32 | | 424 | | 1411 | | 1411 | | 424 | | 32 |
| | | | | 64 | | 1422 | | 9430 | | 15382 | | 9430 | | 1422 | | 64 |
| | | | 128 | | 5504 | | 63154 | | 232795 | | 232795 | | 63154 | | 5504 | | 128 |
| | | 256 | | 19606 | | 452515 | | 3061937 | | 5691450 | | 3061937 | | 452515 | | 19606 | | 256 |
| | 512 | | 73294 | | 3130768 |
|
A220287 as a square array
1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 | 512
| 2 | 4 | 31 | 96 | 424 | 1422 | 5504 | 19606 | 73294
| 4 | 31 | 139 | 1411 | 9430 | 63154 | 452515 | 3130768
| 8 | 96 | 1411 | 15382 | 232795 | 3061937
| 16 | 424 | 9430 | 232795 | 5691450
| 32 | 1422 | 63154 | 3061937
| 64 | 5504 | 452515
| 128 | 19606
| 256
|
A220287 as an upper right triangle
1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 256 | 512
| | 2 | 4 | 31 | 96 | 424 | 1422 | 5504 | 19606 | 73294
| | | 4 | 31 | 139 | 1411 | 9430 | 63154 | 452515 | 3130768
| | | | 8 | 96 | 1411 | 15382 | 232795 | 3061937
| | | | | 16 | 424 | 9430 | 232795 | 5691450
| | | | | | 32 | 1422 | 63154 | 3061937
| | | | | | | 64 | 5504 | 452515
| | | | | | | | 128 | 19606
| | | | | | | | | 256
| | | | | | | | |
|
|