A086885 formatted as a triangular array:
| | | | | | | | 2 | | | | | | | | |
| | | | | | | 3 | | 7 | | | | | | | |
| | | | | | 4 | | 13 | | 34 | | | | | | |
| | | | | 5 | | 21 | | 73 | | 209 | | | | | |
| | | | 6 | | 31 | | 136 | | 501 | | 1546 | | | | |
| | | 7 | | 43 | | 229 | | 1045 | | 4051 | | 13327 | | | |
| | 8 | | 57 | | 358 | | 1961 | | 9276 | | 37633 | | 130922 | | |
| 9 | | 73 | | 529 | | 3393 | | 19081 | | 93289 | | 394353 | | 1441729 | |
| 10 | | 91 | | 748 | | 5509 | | 36046 | | 207775 | | 1047376 | | 4596553 | | 17572114 |
A086885 formatted as a square array:
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 7 | 13 | 21 | 31 | 43 | 57 | 73 | 91 | |
| 34 | 73 | 136 | 229 | 358 | 529 | 748 | | |
| 209 | 501 | 1045 | 1961 | 3393 | 5509 | | | |
| 1546 | 4051 | 9276 | 19081 | 36046 | | | | |
| 13327 | 37633 | 93289 | 207775 | | | | | |
| 130922 | 394353 | 1047376 | | | | | | |
| 1441729 | 4596553 | | | | | | | |
| 17572114 | | | | | | | | |
A086885 formatted as an upper right triangle:
| 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| 7 | 13 | 21 | 31 | 43 | 57 | 73 | 91 |
| | 34 | 73 | 136 | 229 | 358 | 529 | 748 |
| | | 209 | 501 | 1045 | 1961 | 3393 | 5509 |
| | | | 1546 | 4051 | 9276 | 19081 | 36046 |
| | | | | 13327 | 37633 | 93289 | 207775 |
| | | | | | 130922 | 394353 | 1047376 |
| | | | | | | 1441729 | 4596553 |
| | | | | | | | 17572114 |
|
